Table of Contents
Warm welcome and much fun !!
Beginners' WiKi
This is the Beginners' WiKi for Fine Offset manufactured and under their brand Ecowitt sold Weather Stations (and their differently branded clones like Ambient Weather, froggit etc.). For a basic introduction to these weather stations produced by Fine Offset Electronics Co., Ltd. please read the chapter Overwiew and introduction in the main WiKi!
What is this Beginners' WiKi about?
Advanced users and weather station owners will probably not need THIS WiKi and will find everything they need in the main WiKi. But then: who will need it? As we call it Beginners' WiKi it is obviously intended for beginners. As beginners we here define users, who plan to buy their very first weather station or just have bought their first Fine Offset weather station after using another station hardware before. Whether you want to inform yourself before you buy a weather station, or whether you just got your first new Fine Offset devices and want to set them up correctly: you are absolutely right here. Welcome!
This WiKi will be growing slowly, so it will not be “ready” at a certain time. If you miss or don't find something here, the best way to look for it is in the main WiKi! The main WiKi is also the source for any advanced information.
As I (@Dirk27) already said, this WiKi or even parts of it will not be ready at a certain time or ever and also will never be comprehensive or complete. This is because it doesn't want to inform about every aspect of the “Fine Offset World”. Instead it wants to give basic information for you to get your new devices up and running.
So this Beginners' WiKi is mostly about devices.
1 Devices
Devices are the components, which together build your weather station hardware. If you plan to buy a new weather station, you'll at least need a gateway (or console) normally plus one or more sensors. So let's start with some devices that I have!
! Quick tip on using the right names for devices and packages !
These are typical weather station devices:
The single devices aren't only sold alone, but also as weather station packages.
1.1 Gateways
Gateways (and most consoles) are called gateways because they are the connection or gate between sensors and your local [W]LAN network.
You want to know more: Gateways
1.1.1 Ecowitt GW1200
The GW1200 Ecowitt Shop is called IoT Wi-Fi Gateway with Built-in Temperature/Humidity/Barometric.
The GW1200 is the latest hardware revision of the GW1000/GW1100/GW1200 matchbox-size gateway series.
The GW1200 can be connected to a local network via WLAN.
It supports all Ecowitt sensors and IoT devices, please have a look at this matrix! If you want to know, how many of each type of these sensors are supported by your GW1200, then these tables will help.
Technical information and data
Sensor specifications
Range | Accuracy | Resolution | |
---|---|---|---|
Air pressure | 300 - 1100 hPa (8.85 - 32.5 inHg) | +-5 hPa | 0.1 hPa (0.01 inHg) |
Temperature | -9.9°C - 60°C (14°F - 140°F) | +-1°C or +-1.8°F | 0.1°C or 0.1°F |
Humidity | 1% - 99% | +-5% | 1% |
Power supply specifications
– DC 5V, 1.0A, 5.0W (USB-A plug)
Transmission specifications
a) Sensor ⇔ Gateway:
— Distance in open field: 100 m (330 ft)
— RF frequency: 433/868/915/920 MHz depending on National regulations
b) Gateway ⇔ Wi-Fi router:
— Distance in open field: 50 m (160 ft) depending on router and environment
— WLAN and Ethernet: WiFi protocol 802.11 b/g/n (802.11n, Max 150 Mbps), WLAN frequency: 2.4 GHz
Other specifications
– Microprocessor: RISC-V
Unboxing
The GW1200 comes in a brown cardboard box. It should contain the following parts:
- the GW1200 itself,
- a USB-A extension cable for powering the gateway (no data),
- a cable clip,
- the “Quick Start Guide(Generic)” PDF,
- a manual PDF.
Further information can be found on the gateway's product support page.
Another important piece of information which you will need later is its device MAC address (Media Access Control Address - a worldwide unique device network interface identifier). You can find it in the WS View Plus device list once your device is connected to the local network. With this address your device can be identified explicitly.
If you look at the back side of your GW1200, you'll see a USB-A plug for the 5V power supply. A black cable comes out of the right side of the GW1200 with a small black box with slits at its end. In this little box two sensors are located: temperature and humidity. The 3rd sensor of the GW1200, the air pressure sensor, is mounted in the device.
What else do I need?
A mains power adapter is not provided with your GW1200.
You can use any smartphone DC 5V power adapter with USB-A socket and a current > 1.0A. For me such an adapter with 5V 2.0A works fine.
! Quick tip on finding the right place for a gateway !
Initial installation
The initial installation is done, when your GW1200's WebUI (webpage user interface) opens in your smartphone's or tablet's browser. The “Quick Start Guide(Generic)” shows the how-to. Basically there are two methods:
- Method A: Connect your phone's Wifi to the GW1200 WLAN access point (AP). In your phone choose WLAN settings. In the list of available Wifi networks you'll find your gateway's AP as “GW1200X-WIFIxxxx”. Connect to this AP. If your phone complains that this AP has no internet access, you can ignore that message and connect anyway. The message is correct, but internet access is not needed here. It may also be necessary to put your phone into flight mode (no mobile network connected). Now open your browser and enter the IP address 192.168.4.1 in the address field.
- Method B: Install the WS View Plus app (“WSV+”) on your phone or tablet. The app will lead you through the whole setup process. This app also allows you to view live data and to adjust settings.
Method A is your suggested way to go, if you don't have a router with a WLAN network in your house or apartment, but only e.g. a smartphone or tablet.
Normally you should start with Method B.
No matter which method was successful for you in the end, you should now be able to access the GW1200's WebUI. The first thing you will see here will be the Login screen.
Actually we do not enter a password and only tap on Login.
Initial installation completed successfully!
Viewing live data
On the left side of the WebUI you'll find the different menu items. In the lower left corner the firmware version is shown, that is running on your GW1200,- in this example the firmware was V1.3.3 as you see in the picture.
If we now choose the last menu item Live Data, four values are shown:
- Indoor Temperature
- Indoor Humidity
- Absolute Pressure
- Relative Pressure
These values were measured by the three built-in sensors of the GW1200.
First settings
In the WebUI go to Local Network and scroll down to WIFI Network. You have to check here, whether the Router SSID and your WIFI Password are entered correctly. If you then hit Apply, you should be connected to your local network and the fields Static IP Address, Static Subnet Mask and Static Gateway will be filled with the right addresses.
Alternatively you can hit Scan Router. A list of WLAN hotspots in reach will be displayed. Choose the right one (your own!) here, enter your WIFI Password and hit Apply.
In the WebUI then go to Unit Settings and check, whether the units are right.
Connecting sensors
The GW1200 gateway alone doesn't come with a separate (RF connected) sensor. But there are of course packages, which contain the GW1200 plus e.g. a sensor array. See the Sensors chapter for a description on how to connect that sensor(s) with your gateway!
Calibration
The GW1200 has three built-in sensors for temperature, humidity and air pressure. As long as no other sensor is RF connected to your gateway, the items InTemp Offset, InHumi Offset, Abs Offset and Rel Offset in the WebUI's Calibration settings menu can be used to calibrate the GW1200's built-in sensors.
But if there are indeed separate sensors RF connected to your gateway, the calibration values or offsets of all these separate sensors can also be entered/changed in the gateway's WebUI calibration menus.
On HOW TO CALIBRATE the values of all sensors please have a look at the Calibrating sensor values chapter!
As I have no reference sensors for temperature and humidity, that would be suited to calibrate the GW1200's sensors, I leave InTemp Offset and InHumi Offset at zero.
The same applies for Abs Offset, the offset of the measured (absolute) air pressure.
But how about the item Rel Offset?
In order to calibrate the barometric pressure and especially the Rel Offset please have a look at the calibrating the Barometric pressure chapter!
Connecting with internet weather services
Firmware update
You can find the actual firmware version of the GW1200 in this article. Scroll down to the table Combined firmware displayless consoles.
The changelog of the GW1200 firmware versions is here.
The installed firmware version is displayed in the WebUI of your GW1200 in the form Version: GW1200A_Vx.x.x. If a new firmware version is available, a red dot shows up in front of the menu item Device Setting. Then you can update the firmware by clicking on Upgrade Version. The firmware will be upgraded.
After a short while you can restart the WebUI. If you cannot reach it any more, your router could have assigned a new IP address to your gateway. So you have to search for your gateway's new IP address in the router's device list of your local network.
At any time you can check, whether a new firmware is available, if you open the WebUI menu Device Setting and hit Check firmware. The WebUI answers: It's the latest version, if your firmware is up-to-date. Else you are offered to update to the new version.
! Note ! It is also possible to update your firmware with the WSV+ app!
You want to know more: Firmware - Update - Versions
Addons / spare parts
No addons.
Mods and repairs
No known mods.
History
The GW1200 is standing in a row with its predecessor gateways GW1x00, e.g. with the GW1100.
You want to know more: GW1200
1.1.2 Ecowitt GW2000
The GW2000 (Ecowitt Shop) has been so far the most powerful displayless Fine Offset/Ecowitt gateway. I say so far, because a successor, the GW3000 (Ecowitt Shop), has just been released (December 2024).
This gateway is sold under the name GW2000 by the brands Ecowitt and Misol. Froggit sells it under the name DP2000 since January 2023.
! Hint ! For the different names for the same consoles and sensors from different vendors see the brand model translation table.
The GW2000 can be connected to a local network either via WLAN or via LAN.
It supports all Ecowitt sensors and IoT devices, please have a look at this matrix! If you want to know, how many of each type of these sensors are supported by your GW2000, then these tables will help.
Technical information and data
Sensor specifications
Range | Accuracy | Resolution | |
---|---|---|---|
Air pressure | 300 - 1100 hPa (8.85 - 32.5 inHg) | +-5 hPa | 0.1 hPa (0.01 inHg) |
Temperature | -10°C - 60°C (14°F - 140°F) | +-0.3°C or +-0.5°F | 0.1°C or 0.1°F |
Humidity | 1% - 99% | +-3.5% | 1% |
Power supply specifications
– DC 5V, 1.0A, 5.0W (USB-A plug)
Transmission specifications
a) Sensor ⇔ Gateway:
— Distance in open field: 150 m (500 ft)
— RF frequency: 433/868/915/920 MHz depending on National regulations
b) Gateway ⇔ Wi-Fi router:
— Distance in open field: 50 m (160 ft) depending on router and environment
— WLAN: WiFi protocol 802.11 b/g/n (802.11n, Max 150 Mbps), WLAN frequency: 2.4 GHz
— Ethernet: 100 Mbps
Other specifications
– Microprocessor: ESP32
Unboxing
The Ecowitt GW2000 comes in a small white cardboard box. Many informations are printed on this box, so it is a good idea, to read them carefully. E.g. you'll find out, which RF frequency your device uses (mine has a sticker on 868 MHz for use in Europe). This is important: your GW2000 will probably be the CENTRE of your new weather station. Every sensor you plan to add to this gateway has to use the same RF frequency (in my case 868 MHz). Further you are informed about the power supply (USB DC 5V), built-in sensors (temperature, humidity, air pressure), sensor data, connectivity (LAN, WLAN) and transmission distances (RF and 2.4GHz Wifi). If you now open the box, it should contain the following parts:
- the GW2000 itself,
- a power cord with an USB-A plug at its end,
- a wall mount adapter with 3 screws,
- two sheets of paper named:
- – “SETUP Via Embedded Webpage” PDF
- – “Quick Start Guide(Generic)” PDF.
In the GW2000's box you'll also find a QR code leading you to its product support page.
Many pieces of information! Another important piece of information which you will need later is its device MAC address (Media Access Control Address - a worldwide unique device network interface identifier). You can find it on the back of your GW2000. With this address your device can be identified explicitly.
Once your device is connected to the local network, its MAC address will also be shown in the WS View Plus device list.
If you look at the back side of your GW2000, you'll see two sockets: the DC 3.5mm socket for the power supply cord and the Ethernet/LAN socket. And: a white cable comes out of the GW2000 with a small white box with slits at its end. In this little box two sensors are located: temperature and humidity. The 3rd sensor of the GW2000, the air pressure sensor, is mounted in the device.
What else do I need?
Two parts are not provided with your GW2000:
- a mains power adapter,
- a LAN cable.
You can use any smartphone DC 5V power adapter with USB-A socket and a current > 1.0A. For me such an adapter with 5V 2.0A works fine.
If you want to connect the gateway to your local network/router via LAN, then you'll also need a LAN cable.
! Quick tip on finding the right place for a gateway !
Initial installation
The initial installation is done, when your GW2000's WebUI (webpage user interface) opens in your smartphone's or tablet's browser. The “SETUP Via Embedded Webpage” flow chart shows the how-to. Basically there are three methods:
- Method A: Connect your phone's Wifi to the GW2000 WLAN access point (AP). In your phone choose WLAN settings. In the list of available Wifi networks you'll find your gateway's AP as “GW2000X-WIFIxxxx”. Connect to this AP. If your phone complains that this AP has no internet access, you can ignore that message and connect anyway. The message is correct, but internet access is not needed here. It may also be necessary to put your phone into flight mode (no mobile network connected). Now open your browser and enter the IP address 192.168.4.1 in the address field.
- Method B: Connect your GW2000 to your router or LAN switch with a LAN cable. The GW2000 should appear in the router's list of devices in your network. If it doesn't show up there, your router possibly doesn't accept unknown devices. If this is the case, you'll have to activate “accept new or unknown devices” (or a similar term!) in your router's settings.
The router's list of devices in your network should now show the GW2000 as “GW2000X”, if your router supports hostnames.
The listed MAC address of this device should be identical with your gateway's MAC address. In a properties window of the GW2000X you can also find its assigned IP address. Now open your browser and enter this IP address in the address field as: 192.168.xxx.xxx or 10.xxx.xxx.xxx or 172.16.xxx.xxx, if your local network is configured with these private address ranges.
! Hint ! It is a good idea to create an internet link with this IP address on your desktop.
- Method C: Install the WS View Plus app (“WSV+”) on your phone or tablet. The app will lead you through the whole setup process. This app also allows you to view live data and to adjust settings.
Method A is your way to go, if you don't have a router with a WLAN or LAN network in your house or apartment, but only e.g. a smartphone or tablet.
Normally you should start with Method C and use Method B only if Method C doesn't work.
If your GW2000 is connected to your router via LAN, then Method B works perfectly also without the WSV+ app.
No matter which method was successful for you in the end, you should now be able to access the GW2000's WebUI. The first thing you will see here will be the Login screen.
Actually we do not enter a password and only tap on Login.
Initial installation completed successfully!
! Note ! It may not always be convenient to carry a computer/laptop around to access the WebUI via a web browser.
As an alternative tool for local device management including viewing live data Ecowitt provides the WS View Plus app which has with two exceptions the same functionality as the WebUI, but it can easily be used on your smartphone or tablet as long as you are in the range of your WLAN, e.g. in your garden. The before-mentioned exceptions are network and SD card management, the latter for those consoles which have this functionality: WS6210 and GW3000.
Viewing live data
On the left side of the WebUI you'll find the different menu items. In the lower left corner the firmware version is shown, that is running on your GW2000,- my first firmware was V3.1.1 as you see in the picture.
If we now choose the last menu item Live Data, four values are shown:
- Indoor Temperature
- Indoor Humidity
- Absolute Pressure
- Relative Pressure
These values were measured by the three built-in sensors of the GW2000. At this point in time the Relative Pressure is still identical with the Absolute Pressure, because no calibration has been done yet.
First settings
In the WebUI go to Local Network and scroll down to WIFI Network. The picture shows these settings. You have to check here, whether the Router SSID and your WIFI Password are entered correctly. If you then hit Apply, you should be connected to your local network and the fields Static IP Address, Static Subnet Mask and Static Gateway will be filled with the right addresses.
Alternatively you can hit Scan Router (see picture!). A list of WLAN hotspots in reach will be displayed. Choose the right one (your own!) here, enter your WIFI Password and hit Apply.
! Hint ! If you plan to connect your GW2000 to your local network only via LAN cable, you can switch WLAN off in this menu.
In the WebUI then go to Unit Settings and check, whether the units are right. The picture shows my metric units.
Connecting sensors
The GW2000 gateway alone doesn't come with a separate (RF connected) sensor. But there are of course packages, which contain the GW2000 plus e.g. a sensor array. See the Sensors chapter for a description on how to connect that sensor(s) with your gateway!
Calibration
The GW2000 has three built-in sensors for temperature, humidity and air pressure. The picture shows the items InTemp Offset, InHumi Offset, Abs Offset and Rel Offset in the WebUI's Calibration settings menu. As long as no other sensor is RF connected to your gateway, these items can be used to calibrate the GW2000's built-in sensors.
But if there are indeed separate sensors RF connected to your gateway, the calibration values or offsets of all these separate sensors can also be entered/changed in the gateway's WebUI calibration menus.
On HOW TO CALIBRATE the values of all sensors please have a look at the Calibrating sensor values chapter!
As I have no reference sensors for temperature and humidity, that would be suited to calibrate the GW2000's sensors, I leave InTemp Offset and InHumi Offset at zero.
The same applies for Abs Offset, the offset of the measured (absolute) air pressure.
But how about the item Rel Offset?
In order to calibrate the barometric pressure and especially the Rel Offset please have a look at the calibrating the Barometric pressure chapter!
Connecting with internet weather services
Firmware update
You can find the actual firmware version of the GW2000 in this article. Scroll down to the table Combined firmware displayless consoles.
The changelog of the GW2000 firmware versions is here.
The installed firmware version is displayed in the WebUI of your GW2000 in the form Version: GW2000A_Vx.x.x. If a new firmware version is available, a red dot shows up in front of the menu item Device Setting (left green circle in the picture!). You can now update the firmware bei tapping on Upgrade Version. The firmware will be upgraded.
After a short while you can restart the WebUI. If you cannot reach it any more, your router could have assigned a new IP address to your gateway. So you have to search for your gateway's new IP address in the router's device list of your local network.
At any time you can check, whether a new firmware is available, if you open the WebUI menu Device Setting and hit Check firmware. The WebUI answers: It's the latest version, if your firmware is up-to-date. Else you are offered to update to the new version.
! Note ! It is also possible to update your firmware with the WSV+ app!
You want to know more: Firmware - Update - Versions
Addons / spare parts
The GW2000 can also be powered via PoE (power over ethernet). You need a PoE splitter (Ecowitt Shop) to use this kind of power supply.
Mods and repairs
No known mods.
History
The GW2000 was available together with the WS90 7-in-1 outdoor sensor array with haptic (“piezo”) rain gauge since April 1, 2022. This weather station is called GW2001 “Wittboy” (Ecowitt Shop). Meanwhile the GW2000 is also sold alone.
The GW2000 is standing in a row with its predecessor gateways GW1x00, e.g. with the GW1100.
You want to know more: GW2000
1.1.3 Ecowitt GW3000
The GW3000 (Ecowitt Shop) is the most powerful displayless Fine Offset/Ecowitt gateway.
The GW3000 can be connected to a local network either via WLAN or via LAN.
It supports all Ecowitt sensors and IoT devices, please have a look at this matrix! If you want to know, how many of each type of these sensors are supported by your GW3000, then these tables will help.
Technical information and data
Sensor specifications
Range | Accuracy | Resolution | |
---|---|---|---|
Air pressure | 300 - 1100 hPa (8.85 - 32.5 inHg) | +-5 hPa | 0.1 hPa (0.01 inHg) |
Temperature | -9.9°C - 60°C (14°F - 140°F) | +-1°C or +-1.8°F | 0.1°C or 0.1°F |
Humidity | 1% - 99% | +-5% | 1% |
Power supply specifications
– DC 5V, 1.0A, 5.0W (USB-C socket)
Transmission specifications
a) Sensor ⇔ Gateway:
— Distance in open field: 100 m (330 ft)
— RF frequency: 433/868/915 MHz depending on local regulations
b) Gateway ⇔ Wi-Fi router:
— Distance in open field: 30 m (100 ft) depending on router and environment
— WLAN: WiFi protocol 802.11 b/g/n (802.11n, Max 150 Mbps), WLAN frequency: 2.4 GHz
— Ethernet: 100 Mbps
Other specifications
– Female SMA socket for a WLAN antenna (included)
– Micro-SD card slot
Unboxing
The Ecowitt GW3000 comes in a small brown cardboard box. Many informations are printed on this box, so it is a good idea, to read them carefully. E.g. you'll find out, which RF frequency your device uses (mine has a sticker on 868 MHz for use in Europe). If you now open the box, it should contain the following parts:
- the GW3000 itself,
- the 2.4 MHz WLAN antenna (with male SMA plug),
- a power cord USB-C to USB-A,
- a cable clip,
- the “Quick Start Guide(Generic)” PDF,
- a manual PDF.
Further information can be found on the gateway's product support page.
An important piece of information which you will need later is its device MAC address (Media Access Control Address - a worldwide unique device network interface identifier). You can find it on the back of your GW3000. With this address your device can be identified explicitly.
Once your device is connected to the local network, its MAC address will also be shown in the WS View Plus device list.
If you look at the back side of your GW3000, you'll see the SD card slot and two sockets: the USB-C socket for the power supply cord and the Ethernet/LAN socket. And: a white cable comes out of the GW3000 with a small white box with slits at its end. In this little box two sensors are located: temperature and humidity. The 3rd sensor of the GW3000, the air pressure sensor, is mounted in the device.
What else do I need?
Three parts are not provided with your GW3000:
- a mains power adapter,
- a LAN cable,
- a micro-SD card.
You can use any smartphone DC 5V power adapter with USB-A socket and a current > 1.0A. For me such an adapter with 5V 2.0A works fine.
If you want to connect the gateway to your local network/router via LAN, then you'll also need a LAN cable.
And you'll need a micro-SD card. With 8GB or 16GB the gateway can store weather data for decades.
! Quick tip on finding the right place for a gateway !
Initial installation
The initial installation is done, when your GW3000's WebUI (webpage user interface) opens in your smartphone's or tablet's browser. The “Quick Start Guide(Generic)” shows the how-to. Basically there are three methods:
- Method A: Connect your phone's Wifi to the GW3000 WLAN access point (AP). In your phone choose WLAN settings. In the list of available Wifi networks you'll find your gateway's AP as “GW3000X-WIFIxxxx”. Connect to this AP. If your phone complains that this AP has no internet access, you can ignore that message and connect anyway. The message is correct, but internet access is not needed here. It may also be necessary to put your phone into flight mode (no mobile network connected). Now open your browser and enter the IP address 192.168.4.1 in the address field.
- Method B: Connect your GW3000 to your router or LAN switch with a LAN cable. The GW3000 should appear in the router's list of devices in your network. If it doesn't show up there, your router possibly doesn't accept unknown devices. If this is the case, you'll have to activate “accept new or unknown devices” (or a similar term!) in your router's settings.
The router's list of devices in your network should now show the GW3000 as “GW3000X”, if your router supports hostnames.
The listed MAC address of this device should be identical with your gateway's MAC address. In a properties window of the GW3000X you can also find its assigned IP address. Now open your browser and enter this IP address in the address field as: 192.168.xxx.xxx or 10.xxx.xxx.xxx or 172.16.xxx.xxx, if your local network is configured with these private address ranges.
! Hint ! It is a good idea to create an internet link with this IP address on your desktop.
- Method C: Install the WS View Plus app (“WSV+”) on your phone or tablet. The app will lead you through the whole setup process. This app also allows you to view live data and to adjust settings.
Method A is your way to go, if you don't have a router with a WLAN or LAN network in your house or apartment, but only e.g. a smartphone or tablet.
Normally you should start with Method C and use Method B only if Method C doesn't work.
If your GW3000 is connected to your router via LAN, then Method B works perfectly also without the WSV+ app.
No matter which method was successful for you in the end, you should now be able to access the GW3000's WebUI. The first thing you will see here will be the Login screen.
Actually we do not enter a password and only tap on Login.
Initial installation completed successfully!
! Note ! It may not always be convenient to carry a computer/laptop around to access the WebUI via a web browser.
As an alternative tool for local device management including viewing live data Ecowitt provides the WS View Plus app which has with two exceptions the same functionality as the WebUI, but it can easily be used on your smartphone or tablet as long as you are in the range of your WLAN, e.g. in your garden. The before-mentioned exceptions are network and SD card management, the latter for those consoles which have this functionality: WS6210 and GW3000.
Viewing live data
On the left side of the WebUI you'll find the different menu items. In the lower left corner the firmware version is shown, that is running on your GW3000,- my first firmware was V1.0.0 as you see in the picture.
If we now choose the menu item Live Data, four values are shown:
- Indoor Temperature
- Indoor Humidity
- Absolute Pressure
- Relative Pressure
These values were measured by the three built-in sensors of the GW3000. At this point in time the Relative Pressure is still identical with the Absolute Pressure, because no calibration has been done yet.
First settings
In the WebUI go to Local Network and scroll down to WIFI Network. The picture shows these settings. You have to check here, whether the Router SSID and your WIFI Password are entered correctly. If you then hit Apply, you should be connected to your local network and the fields Static IP Address, Static Subnet Mask and Static Gateway will be filled with the right addresses.
Alternatively you can hit Scan Router. A list of WLAN hotspots in reach will be displayed. Choose the right one (your own!) here, enter your WIFI Password and hit Apply.
! Hint ! If you plan to connect your GW3000 to your local network only via LAN cable, you can switch WLAN off in this menu.
In the WebUI then go to Unit Settings and check, whether the units are right. The picture shows my metric units.
Connecting sensors
The GW3000 gateway alone doesn't come with a separate (RF connected) sensor. But there are of course packages, which contain the GW3000 plus e.g. a sensor array. See the Sensors chapter for a description on how to connect that sensor(s) with your gateway!
Calibration
The GW3000 has three built-in sensors for temperature, humidity and air pressure. The picture shows the items InTemp Offset, InHumi Offset, Abs Offset and Rel Offset in the WebUI's Calibration settings menu. As long as no other sensor is RF connected to your gateway, these items can be used to calibrate the GW3000's built-in sensors.
But if there are indeed separate sensors RF connected to your gateway, the calibration values or offsets of all these separate sensors can also be entered/changed in the gateway's WebUI calibration menus.
On HOW TO CALIBRATE the values of all sensors please have a look at the Calibrating sensor values chapter!
As I have no reference sensors for temperature and humidity, that would be suited to calibrate the GW3000's sensors, I leave InTemp Offset and InHumi Offset at zero.
The same applies for Abs Offset, the offset of the measured (absolute) air pressure.
But how about the item Rel Offset?
In order to calibrate the barometric pressure and especially the Rel Offset please have a look at the calibrating the Barometric pressure chapter!
Connecting with internet weather services
Firmware update
You can find the actual firmware version of the GW3000 in this article. Scroll down to the table Combined firmware displayless consoles.
The changelog of the GW3000 firmware versions is here.
The installed firmware version is displayed in the WebUI of your GW3000 in the form Version: GW3000A_Vx.x.x. If a new firmware version is available, a red dot shows up in front of the menu item Device Setting (left green circle in the picture!). You can now update the firmware bei tapping on Upgrade Version. The firmware will be upgraded.
After a short while you can restart the WebUI. If you cannot reach it any more, your router could have assigned a new IP address to your gateway. So you have to search for your gateway's new IP address in the router's device list of your local network.
At any time you can check, whether a new firmware is available, if you open the WebUI menu Device Setting and hit Check firmware. The WebUI answers: It's the latest version, if your firmware is up-to-date. Else you are offered to update to the new version.
! Note ! It is also possible to update your firmware with the WSV+ app!
You want to know more: Firmware - Update - Versions
Addons / spare parts
No addons.
Mods and repairs
No known mods.
History
The GW3000 is available since December 5, 2024. It is standing in a row with its predecessor gateways GW1x00, e.g. with the GW1200, and with the GW2000.
You want to know more: GW3000
1.2 Consoles
A simple formula: most consoles are gateways and they all have a display. So the display consoles are able to also show sensor data and settings on their display.
You want to know more: Display Consoles
1.2.1 Ecowitt HP2550_C
The HP2550_C (Ecowitt Shop) is a (black or white) console with a 7“ large TFT display.
Since April 2022 there is also a successor, the HP2560_C (Ecowitt Shop).
This gateway is sold under the name HP2550 by the brands Ecowitt and Misol. Froggit sells it under the name HP1000SE PRO. It is also sold by other brands under different names or as a component of weather stations, see this table.
The HP2550_C can be connected to a local network via WLAN.
It doesn't support IoT devices, but supports all other Ecowitt sensors, please have a look at this matrix! If you want to know, how many of each type of these sensors are supported by your HP2550_C and which sensors can be seen on its display, then these tables will help.
Technical information and data
Sensor specifications
No built-in sensors.
Power supply specifications
– DC 5V, 1.0A, 5.0W (AC adapter 100-240V~, 50/60Hz, 0.2A)
– DC 3V (internal RTC backup battery CR2032)
Transmission specifications
a) Sensor ⇒ Console:
— Distance in open field: 100 m (330 ft)
— RF frequency: 433/868/915/920 MHz depends on location
b) Console ⇔ Wi-Fi router:
— Distance in open field: > 30 m (100 ft) depending on router and environment
— WLAN and Ethernet: 802.11 b/g/n (802.11n, Max 150 Mbps), WLAN frequency: 2.4 GHz
Other specifications
– Display: 7” (155 x 87 mm) TFT Color-LCD
– Internal memory: 16 MB
– Micro-SD card slot: max. 32 GB (FAT32 formatted), SDHC
Unboxing
The Ecowitt HP2550_C comes in a cardboard box. If you open the box, it should contain the following parts:
- the HP2550_C console itself,
- an AC power adapter with a DC 3.5mm plug at the end of its cable,
- a user manual PDF.
Further information can be found on the console's product support page.
If you look at the right side of your HP2550_C, you'll see (from top to bottom) the SD card slot, a mini-USB socket (factory use only!), the DC 3.5mm 5V power supply socket and a small hole (used for reset).
Now connect the AC adapter. The console wakes up and shows its main “weather station screen”, see Viewing live data below!
What else do I need?
First you'll need a micro-SD card. With 8GB or 16GB the console can store weather data for decades. The second purpose for using an SD card: if your HP2550_C was delivered with an older WLAN modem (WiFi firmware name EasyWeather), you can only update the device firmware with a SD card, see Firmware update below!
Second: for measuring indoor temperature, humidity and air pressure you need the WN32P T&HP sensor which comes with the Froggit HP1000SE PRO console.
Initial installation and setup
If you press the rightmost hardware button #8 (we give the buttons the numbers #1 thru #8 from left to right!), you open the Setup menu of the console (see picture!).
! Hint ! General instructions on how to work with the different setup pages:
- Note: the key layout on the main page and the setup pages is different
- You move between the different options (entry fields) with the Arrow-Up/Arrow-Down keys (#5 and #6)
- Changes of values or selections in a field are done by the help of the (+) and (-) buttons (#1 and #2)
- Changes of different digits in a row (e.g. rain, air pressure …) with Arrow-Left/Arrow-Right keys (#3 and #4)
- You continue to the next setup page with the gear wheel (#7)
- You return to the main display page with the return key (#8)
Some essential things to do:
- A) Date and Time: choose Setup from the menu. On the appearing screen check whether the time/date update via internet time server is activated.
- B) Units: the red-rimmed part in the picture shows my metric unit settings. Adjust them to your needs.
- C) Longitude-Latitude: choose Setup from the menu. Enter your location data on the screen, that shows up.
- D) Wi-Fi Scan: choose Setup from the menu. On the screen Select Wi-Fi Network you can now choose your Network's SSID and enter your Wi-Fi Password. The screen Hidden SSID then shows, that you are connected to your network: Status Connected.
Viewing live data
Because the HP2550_C console has no built-in sensors, it will start up with a screen as shown in the picture (bright mode). You will see no sensor data, but the screen isn't empty: on the upper right you can see date and time. An RTC (real time clock) with backup battery works in the console and holds the time also in case of a power blackout. If the HP2550_C is connected (via Wifi) with the internet, it updates the time with the help of a time server.
On the lower left of the display you'll see the local sunrise and sunset time, if you have already set your position and if time and date are correct.
On the upper left of the screen three symbols must be mentioned (from left to right): the Ecowitt Weather icon, the Wifi and SD card symbols. They say, that the console is connected to the Ecowitt Weather server and to the local WLAN network, and that an SD card is inserted correctly in the SD card slot.
First settings
The important things have been done in the initial installation. You can now e.g. also select your menu language.
Connecting sensors
Of course several separate sensors can be RF connected to the console and there are also packages, which contain the HP2550_C plus e.g. a sensor array. See the Sensors chapter for a description on how to connect that sensor(s) with your console!
Calibration
The HP2550_C console has no built-in sensors. But the calibration values or offsets of all separate RF connected sensors can be entered/changed in the console's calibration menus. On HOW TO CALIBRATE the values of these sensors please have a look at the Calibrating sensor values chapter!
Connecting with internet weather services
Firmware update
Before you update anything, you should first collect information about your console.
The information can be found on the Factory - About menu screen of the HP2550_C. You reach this screen by pressing the rightmost button #8 once and button #7 three times. Then you are on the Factory menu screen. With the Arrow-Up button #5 you choose the item About: Display and confirm with (+) #1 or (-) #2. Now you see the About menu screen (picture!).
There you'll find these important pieces of information:
- Model: here [Froggit] HP1000SE-PRO (= Ecowitt HP2550_C)
- Hardware revision number: here V2.0
- Firmware revision number: here Pro_V1.9.9
- Frequency: here 868M[Hz]
- MAC: …
- IP: here 192.168.2.121
- Wi-Fi Firmware: here EasyWeatherPro_V5.1.7
You can see in this example, that your model is the Froggit version of the HP2550_C, that its hardware revision is V2.0 (newer model!), that its RF frequency is 868 MHz and its IP address 192.168.2.121.
Very important is the MAC address of your console (here grayed out): you'll need it e.g. for identifying your console in your local [W]LAN network and for connecting to internet weather services. So absolutely write it down!
Then you'll notice, that the HP2550_C needs TWO types of firmware:
- the DEVICE (“host”) firmware: here V1.9.9
- and the Wi-Fi firmware: here V5.1.7
On the right side of the About screen you can check, whether you have the actual firmware versions. Select Check [Wi-Fi] firmware. The console then possibly informs you about a new Wi-Fi or device firmware and offers to download and install it.
! Hint ! If your device/host firmware has a version below V1.9.5, then the [Automatic] Host Firmware Upgrade is NOT offered in this menu. That means there is only the [Automatic] WiFi Firmware Upgrade option.
But on a console with a device firmware < V1.9.5 this firmware can be upgraded on a different path:
You can find the actual device firmware on the HP2550_C's product support page. Scroll down on this page and download the “HP2550&HP2560 Firmware Vx.x.x” ZIP file.
Unzip the downloaded file,- it contains the device firmware file user.bin.
Copy user.bin to the root directory of your console's SD card. The console will recognize the file and install the new host firmware automatically.
After a firmware update the console restarts and shows its main “weather station screen”. If you cannot reach the HP2550_C's WebUI any more, your router could have assigned a new IP address to your console. So you have to search for its new IP address in the router's device list of your local network or on the About menu screen.
You want to know more: Firmware - Update - Versions
Addons / spare parts
– T&HP sensor: WN32P (Ecowitt Shop).
Mods and repairs
History
You want to know more: HP2550_C
1.2.2 Froggit WH2626
Froggit sells this little console with built-in (indoor) temperature sensor together with an outdoor sensor DP40 (Ecowitt WN32 or WH32 outdoor) as WH2626 WiFi Internet Thermometer (Froggit Shop).
Fine Offset offers a successor, the WH0268 (Fine Offset Shop).
The WH2626 can be connected to a local network via WLAN.
Technical information and data
Sensor specifications
Range | Accuracy | Resolution | |
---|---|---|---|
Outdoor Temperature | -40°C - 60°C (-40°F - 140°F) | +-1°C or +-1.8°F | 0.1°C or 0.1°F |
Outdoor Humidity | 10% - 99% | +-5% (range: 20% - 90%) | 1% |
Indoor Temperature | -9.9°C - 60°C (14°F - 140°F) | N/A | 0.1°C or 0.1°F |
Power supply specifications
Console:
– DC 5V, 500mA, 2.5W (AC adapter 100-240V~, 50/60Hz, 0.3A max)
– DC 3V (backup: 2 pcs. AAA battery)
Outdoor sensor:
– DC 3V (2 pcs. AA battery)
— Battery life: 1 year
Transmission specifications
a) Sensor ⇔ Gateway:
— Distance in open field: 100 m (330 ft)
— RF frequency: 433/868 MHz depending on National regulations
b) Gateway ⇔ Wi-Fi router:
— Distance in open field: 50 m (160 ft) depending on router and environment
— WLAN and Ethernet: WiFi protocol 802.11 b/g/n (802.11n, Max 150 Mbps), WLAN frequency: 2.4 GHz
Other specifications
– Switchable (permanent or 3s) backlight function
– Time, date and day of week via internet time server
– Time alarm function
Unboxing
The WH2626 comes in a brown cardboard box. It should contain the following parts:
- the WH2626 console itself,
- an AC power adapter,
- the outdoor sensor DP40 with two screws and a small cable tie,
- a manual PDF.
Further information can be found on the console's product page.
What else do I need?
Console:
– Two 1.5V batteries size AAA (IEC-LR03) alkaline.
Outdoor sensor:
– Two 1.5V batteries size AA (IEC-R6) alkaline or lithium (in cold climate areas).
Initial installation and setup
Open the DP40's battery compartment and insert two AA batteries, close the compartment.
Open the console's battery compartment and insert two AAA batteries, close the compartment. Then plug in the AC adapter.
The WH2626 console at once shows its startup time (0:00 FRI 1.1.16) and the indoor temperature. The outdoor temperature shows –.- at first. After a short time also the outdoor temperature comes up. That means: the DP40 outdoor sensor is connected to the console.
The task to connect the console with the local WLAN network is a bit difficult, because it comes with a VERY OLD Wifi firmware. So the WH2626 isn't recognized by the WSV+ app and cannot be connected to a local network.
The way I got it to work goes like this:
- Download and install the Fine Offset WSV+ app
- Download and install the Fine Offset WS Tool app (this quite old app [2016] will not work properly with newer smartphones, but can still be found on the Android [last update: 10-2023] and Apple [last update: 2018] Appstores)
- If your local network has 2.4 GHz and 5 GHz WLAN: switch 5 GHz off and be sure, that you phone is connected with your local network
- It may also be necessary to put your smartphone into flight mode (no mobile network connected, but Wifi still on!)
- Now open the WS Tool app
- On the console press the SET and ALARM keys for 5 seconds
- The console enters pairing mode, the Wifi symbol (upper right display corner) flashes quickly
- In WS Tool choose Add Device, the console should appear on the My Devices screen
- Now choose Link with Router
- On the Add Router screen enter your Router SSID and WIFI Password
- The WH2626 console should now be listed on your router's network device list as ESP_0F0F0F
- The console's Wifi symbol is highlighted
- Write down the console's MAC address
- Close the WS Tool app (you will never need it again!)
- Open the WSV+ app and add the console to your Favorites
- If WSV+ offers to update the (WiFi) firmware, then do that at once! Your console will be updated, in my case to firmware EasyWeatherV1.6.9
- The console now also shows the right date and time (derived from a time server)
- With the new firmware the WH2626 can be used like other Wifi consoles
! Note ! In my case I had to try the necessary steps with the WS Tool app several times, because the app crashes, sometimes does nothing or restarts with the question Clear the app cache? But in the end I could successfully enter SSID and Wifi password.
Viewing live data
Connected with the outdoor sensor and with the local WLAN network the console shows time, day of week, date, indoor and outdoor temperature each with max. and min. values / 24h (see right picture!).
As soon as the console is also connected with the Ecowitt Weather server (above picture!), the same data can be seen online plus the outdoor humidity.
First settings
You can press the ALARM key to view the alarm time. To set the alarm ON/OFF and the alarm time hold the ALARM key for 2 seconds, with the +/Reset-MAX key you toggle between alarm ON/OFF. If you then press SET, you can set the alarm hour with the +/Reset-MAX and -/Reset-MIN keys. If you press SET once more, you set the alarm minute with the +/Reset-MAX and -/Reset-MIN keys. With the next press on SET you leave the alarm setting.
For further settings read the WH2626 manual!
Connecting sensors
Normally the console will receive the RF transmissions of the DP40, automatically detect the sensor and show its outdoor temperature on the display (see Viewing live data above!).
If this doesn't work as expected or if you want to re-register the sensor, you'll have to press the +/Reset-MAX and the -/Reset-MIN keys for 5 seconds. The console will now search for a new sensor for the next 3 minutes. Be patient and don't press a key until the outdoor temperature comes in!
Calibration
The console doesn't allow a sensor calibration.
Connecting with internet weather services
Firmware update
The firmware can be updated with the WSV+ app.
Addons / spare parts
Spare part:
– DP40 sensor: DP40 (Froggit Shop).
Mods and repairs
No known mods.
History
Obviously Fine Offset produced and sold this product under the name WH0260. It is not available from Fine Offset any more.
1.2.3 Ecowitt WH0290_C
1.2.4 Ecowitt WH0291_C
1.3 Sensors
In this context sensors are devices, that can measure one or more environment parameters like temperature or humidity. Some sensors have a small display to show the measured values. They transmit these values in fixed time intervals to a gateway or console using the ISM frequency band (e.g. 868 MHz in Europe).
You want to know more: Sensors
Any problems connecting sensors to gateways or consoles?
! Quick tip on registering a sensor !
1.3.1 Sensor arrays
1.3.1.1 Ecowitt WS90
The WS90 (Ecowitt Shop) is called “Wittboy” and described as 7-in-1 Outdoor Anti-vibration Haptic Sensor Array. It measures temperature, humidity, wind direction and speed, rain, light and UV levels. Wind direction and speed are measured by an ultrasonic sensor. A quite new measuring method is used for the amount of rain: a
piezoelectric sensor detects and counts rain drops falling on the sensor's top cover. The manufacturer calls this sensor Piezoelectric “haptic” rain gauge.
Froggit sells it under the name DP1100 and Ambient under WS4000-ARRAY.
Only ONE WS90 7-in-1 sensor can be used per console/gateway.
Also available is the WN90LP (Ecowitt Shop), a WS90 version with RS485 interface.
Technical information and data
Sensor specifications
Range | Accuracy | Resolution | |
---|---|---|---|
Temperature | -40°C - 60°C (-40°F - 140°F) | +-0.3°C (+-0.6°F) | 0.1°C (0.1°F) |
Humidity | 1% - 99% | +-3.5% | 1% |
Light | 0kLux to 200kLux | +-15% | 0.1kLux |
UVI | 1 to 15 | +-2 | 1 |
Rain | 0 to 9999 | TBA | 0.1mm |
Wind speed | 0m/s to 40m/s | < 10m/s: +-0.5m/s; >= 10m/s: +-5% | 0.1m/s |
Wind direction | 0° to 359° | < 2m/s: +-10°; >= 2m/s: +-7° | 1° |
Power supply specifications
– Solar power supply (built-in solar cell and supercapacitor)
– DC 3V (2 pcs. AA battery, also via extra battery pack)
— Battery life: 1 year
– DC 12V also for the anemometer heater (via external 12V/1A power adapter)
Transmission specifications
– Sensor ⇒ Gateway/console:
— Distance in open field: 150 m (500 ft)
— RF frequency: 433/868/915 MHz depends on location
– Update interval: 8.8 s
Other specifications
– International protection: IPX5 (waterproof)
– Solar panel (built-in): 6.5V/4mA
– Anemometer heating function (only with DC 12V power supply)
Unboxing
The WS90 comes in a cardboard box and lies safely in foam material. A manual PDF is also in the box.
Further information can be found on the sensor's product support page.
What else do I need?
Two 1.5V batteries size AA (IEC-R6) alkaline or lithium (in cold climate areas).
Initial installation
Open the battery compartment with a screw driver and insert two AA batteries. Close the battery compartment again.
If you watch the top cover of your WS90, a blue LED should now flash every 8..9 seconds.
The WS90 has to be mounted outdoors on a vertical pole with a diameter of 25..28 mm. The WS90's power cable for the heater function can be put inside the pole, if not needed or if the extension cable runs down in the pole to the DC 12V power adapter.
For a correct measurement of wind speed an direction the WS90 should be positioned vertically in an open environment and not surrounded by obstacles, e.g. on top of your roof.
Before fixing the WS90 on its pole it has to be turned in the right direction: the screw of the battery compartment (or the small marking “N” above that compartment) has to point north.
Connecting with a gateway or console
Normally a gateway or console in reach of the WS90 will receive its RF transmissions, automatically detect the new sensor and show its values e.g. on a display or in a WebUI (see Viewing live data below!).
If you want to be sure, that YOUR sensor is recognized by e.g. your console, you can open the Sensors ID menu. The picture shows the GW2000's WebUI with its Sensors ID list. The WS90 is registered as Temp & Humidity & Solar & Wind & Rain sensor with the ID 2FD7 in this example.
Viewing live data
On the picture you see the WS90 data red-rimmed on a HP2550_C console.
! Hint ! The rain data on the right side of the screen are only derived from the WS90, if the word Piezo is shown below Daily Rain! If Piezo isn't displayed there, the rain data were measured by a “traditional” rain gauge like the WH40 and NOT by the WS90.
You can switch between traditional and Piezo rain gauges in the HP2550_C's settings menu Setup - More. Go to Rainfall data priority and select Piezo. rain gauge in order to show the WS90 rain data on the display!
If a WH32 outdoor is also registered on this console, the outdoor temperature and humidity of THIS sensor will be shown and NOT the WS90 values (details: Sensor hierarchy)!
The picture shows the WS90 data in the Ecowitt app (German language). On the left side of the screen you can see outdoor temperature and humidity as well as wind direction and speed.
On the upper right side the light and UVI values are shown and below them two WS90 battery values (battery and supercap).
Calibration
Temperature
The temperature sensor in the WS90 is quite accurate (+-0.3°C), so you could leave the OutTemp Offset in the calibration menus or WebUI of your consoles/gateways at zero.
In the Temperature section of the Calibrating sensor values chapter you'll read about another possibility: you could calibrate the temperature with an own reference sensor, e.g. the WN32P, before you mount your WS90 outside. Done with all your sensors this ensures, that all your (air) temperature sensors show the same value at a given temperature.
Because the WS90 has to be mounted on a free standing higher mast, you don't have the chance to improve the temperature measurement of your 7-in-1 sensor: e.g. you cannot mount it in the shadow to avoid too high temperature values caused by solar radiation.
That means: independently from your OutTemp Offset value described above, the temperature measurement results of your WS90 will be dependent on other factors (solar radiation, the built-in anemometer heater …) you have no influence on.
But the manufacturer has! The firmware of gateways and consoles contains an algorithm to compensate for solar radiation. The picture shows, how to switch this function on or off e.g. in the GW2000 WebUI's Device Setting menu.
For a better temperature and humidity compensation for influences of the anemometer heater, a new SHT30 Temp & Hygr module with compensation function (see Addons / spare parts below!) was developed. This module can replace the built-in default T&H module of the WS90 (firmware V1.4.8 or higher required!).
And after all: what if you are still not pleased with the temperature values? You can use a WH32 outdoor sensor to replace the WS90's temperature (and humidity) values.
Humidity
The humidity sensor in the WS90 is quite accurate (+-3.5%), so you could leave the OutHumi Offset in the calibration menus or WebUI of your consoles/gateways at zero.
In the Humidity section of the Calibrating sensor values chapter you'll read about another possibility: you could calibrate the humidity with an own reference sensor, e.g. the WN32P, before you mount your WS90 outside. Done with all your sensors this ensures, that all your (air) humidity sensors show the same value at a given humidity.
Are there any factors affecting the WS90 humidity measurement? An overheated WS90 (e.g. in summer in direct sunlight) can give out too low humidity values. If you are not satisfied with this you can use a WH32 outdoor sensor to replace the WS90's humidity (and temperature) values.
Light and UVI
An ambient light sensor is built into the center of the WS90 top cover under a diffusor plate. It measures illuminance [lux]. If you have access to a luxmeter with an accuracy MUCH better than +-15%, you can directly calibrate your WS90 light sensor with this measuring instrument by adjusting the Solar Rad. Gain setting (see the Calibration menu of the HP2550_C console in the picture!). For this you have to set the console's “Irradiance” unit temporarily to Klux.
From the illuminance [lux] the console calculates the solar irradiance [W/m²] by dividing the “lux value” by 126.7 (see the definition 1 W/m² = 126.7 Lux in the picture!).
Then the UV index (UVI) is calculated by dividing the irradiance by 100. The result is rounded (or truncated?) to an integer from 0 to 15. The UV Gain setting can be used to calibrate the UVI e.g. with regional UVI references like the BfS or WillyWeather. Users found out, that 0.65 to 0.75 is a good value for UV Gain, if you don't want to do a comparative calibration.
Piezo rain
The WS90's Piezoelectric “haptic” rain gauge measures the amount of rain indirectly. Fine Offset has improved the accuracy of this gauge over time with some firmware updates and with a modification of the top cover (WS90 hardware versions 1.0 to 3.0).
! Hint ! You can upgrade your WS90 hardware to version 3.0 by buying the new Rain Gauge Top Cover (see Addons / spare parts below!). Then you can replace your “old” top cover easily with this spare part, see WS90 top cover portion replacement!
On the picture the Rain Totals page of the GW2000's WebUI is shown. You can calibrate the WS90 rain with five different linear gain factors (items Piezo RainX Gain [X = 1..5]) for different rain rate tiers.
! Hint ! With the newer firmware versions > V1.4.7 I would leave the five gain factors at 1.00!
Wind speed and direction
The picture shows the calibration values for wind speed (item Wind Gain) and direction (item WindDir Offset) on the Calibration page of the GW2000's WebUI. If you have a reference instrument for wind speed, you can calibrate the Wind Gain of your WS90 in the range of 0.10 to 5.00.
There is no need to adjust the WindDir Offset, if you have mounted the WS90 correctly on its pole with the screw of the battery compartment pointing north.
! Hint ! If a reset of the ultrasonic anemometer is needed to get a zero baseline e.g. after a firmware update, this can be done by pressing the CAL button of the WS90 for 3 seconds under windless conditions, see sensor firmware (WS80/WS90/WS85)!
Firmware update
Which firmware version is working in my WS90?
If you have registered a console or gateway with a connected WS90 on the Ecowitt Weather server, select the Dashboard and tap on Reported x seconds ago on top of the screen. The WS90 firmware version will be shown as WS90_xxx.
Another option: in the WSV+ app choose your Device (gateway/console), then Live Data, More and Sensors ID. In the list the WS90 firmware version is displayed as Ver: xxx at the end of the WS90 line.
You can find the actual firmware on the WS90 product support page. Scroll down on this page and in the 2. ECOWITT Firmware section download the “WS90&WS90LP Upgrade Toolkit Windows PCs” ZIP file (there is a similar file for Linux/MacOS users!) and also the “WS90&WS90LP Firmware Vx.x.x” ZIP file.
Unzip both downloaded files. The Upgrade Toolkit contains a PDF help file and the program “DfuSe_Demo” used for writing (“flashing”) the new firmware into the WS90. The Firmware file contains the new firmware named “WS90_Vx.x.x.dfu”.
Now open the help file “WS90 Firmware upgrade Help File.pdf”. It will guide you through the whole process.
If you do the firmware upgrade of the WS90 for the first time, you'll have to install the DfuSe_Demo program on your (Windows) PC by starting “DfuSe_Demo_Vx.x.x_Setup.exe” from the Upgrade Toolkit. Normally it will install to the path C:/Programs (x86)/STMicroelectronics/Software/DfuSe vx.x.x/Bin.
It is a good idea to create a link to “DfuSeDemo.exe” on your desktop. Now this program is ready to use. Do not deinstall it after writing your firmware, because you'll probably need it for further updates!
Follow all steps in the mentioned help file to upgrade your firmware. The picture shows, how the WS90 has to be connected to the PC via a micro-USB to USB-A data cable (not provided with the WS90).
If the new firmware was written successfully, the blue LED on your WS90 should again flash every 8..9 seconds.
You want to know more: Sensor Firmware WS80 WS90 WS85
Addons / spare parts
– Extension Battery Pack (Ecowitt Shop)
– Extension Cord and DC 12V/1A Power Adapter (Ecowitt Shop)
– 3m DIY Extension Cable (Ecowitt Shop)
– Bird Spikes (Ecowitt Shop)
– SHT35 Temp & Hygr (Ecowitt Shop)
– SHT30 Temp & Hygr with protection filter and compensation function (Ecowitt Shop)
– Piezo Rain Gauge Top Cover (Ecowitt Shop)
– 1“ * 15cm tube with 1.2” to 1“ adapter (Ecowitt Shop)
Mods and repairs
- External battery:
If you cannot easily change the batteries of your WS90, e.g. because it is mounted high above your roof, you can buy the Extension Battery Pack. With this addon the batteries can be located 10 m away from the WS90 in a waterproof box.
- External DC 12V power supply:
There are two reasons to buy the Extension Cord and DC 12V/1A Power Adapter: First you HAVE TO use it, if you want to use the anemometer heater of your WS90. Second you can (optionally) use it, if you don't want to supply your WS90 with batteries,- the external DC 12V power adapter will supply the heater and also the WS90 electronics and replace the batteries. - Bird protection:
To protect your WS90 from birds sitting on its top cover, you can attach the Bird Spikes. - Other internal T&H modules:
Actually two internal T&H modules are offered as addons: the SHT35 Temp & Hygr and the SHT30 Temp & Hygr with protection filter and compensation function module. These modules can replace the default module inside your WS90. With the SHT35 Temp & Hygr you can improve the T&H accuracy. The SHT30 Temp & Hygr with … compensation function allows a better temperature and humidity compensation of your WS90. - New V3.0 hardware top cover:
The addon Piezo Rain Gauge Top Cover can replace your “old” top cover. Before you buy this part, be sure that you don't already have the newest version. Have a look at the picture of the different WS90 top covers! If your top cover looks like the HW 3.0 version, you don't need this addon.
History
You want to know more: WS90 ("Wittboy")
1.3.2 Single sensors
1.3.2.1 Ecowitt WH32 outdoor
The sensor WH32 outdoor (Ecowitt Shop), also called WN32 or WH32D, is the “main outdoor sensor” for temperature and humidity.
Froggit sells it under the name DP40.
Only ONE WH32 outdoor sensor can be used per console/gateway and its temperature and humidity values are always represented as Outdoor.
Sensor arrays like the WS69/WH65, WS80 or WS90 also measure outdoor temperature and humidity. If a WH32 outdoor sensor is registered on a console/gateway together with one of these sensor arrays, then the WH32 outdoor values are dominant. That means: the sensor array's T&H values are NOT SHOWN. If you want to use your sensor array's T&H values, you'll have to deactivate the WH32 outdoor sensor in the Sensors ID menu. You want to know more: Sensor hierarchy
Technical information and data
Sensor specifications
Range | Accuracy | Resolution | |
---|---|---|---|
Temperature | -10°C - 60°C (14°F - 140°F) | +-0.5°C (+-0.9°F) | 0.1°C (0.1°F) |
Humidity | 1% - 99% | +-4.5% | 1% |
– LCD screen operating temperature range: -10°C - 50°C (14°F - 122°F)
Power supply specifications
– DC 3V (2 pcs. AA battery)
— Battery life: 1 year
Transmission specifications
– Sensor ⇒ Gateway/console:
— Distance in open field: 100 m (330 ft)
— RF frequency: 433/868/915 MHz depends on location
– Update interval: ~64 s
Other specifications
– International protection: IP44 (splashproof)
Unboxing
The WH32 outdoor comes with two screws, a small cable tie and a manual PDF.
Further information can be found on the sensor's product support page.
What else do I need?
Two 1.5V batteries size AA (IEC-R6) alkaline or lithium (in cold climate areas).
Initial installation
Open the battery compartment of the WH32 outdoor. You'll see a small DIP switch for selecting °C (left position) or °F (right position) as the displayed temperature unit.
Now insert two AA batteries and close the compartment door.
The sensor's LCD should at once show temperature and humidity values.
Where to position this sensor? Of course it has to be positioned outdoors. For further information:
! Quick tip on finding the right place for a T&H outdoor sensor !
Connecting with a gateway or console
Normally a gateway or console in reach of the WH32 outdoor will receive its RF transmissions, automatically detect the new sensor and show its values e.g. on a display or in a WebUI (see Viewing live data below!).
If you want to be sure, that YOUR sensor is recognized by e.g. your console, you can open the Sensors ID menu. The picture shows the HP2550_C sensors ID list. The WH32 outdoor is registered as T&H sensor with the ID eb in this example.
This picture shows the same content in a GW2000's WebUI: on the Sensors ID page the WH32 outdoor is also registered as Temp & Humidity sensor with the ID eb,- obviously that is the same sensor!
! Quick tip on finding the sensor's ID !
Viewing live data
The picture shows the WH32 outdoor data in a GW2000 WebUI. On the right side of the screen you can see the outdoor temperature and humidity.
From the T&H readings the gateway calculates the Feels Like and the Dew Point values.
Calibration
The WH32 outdoor measures outdoor temperature and humidity. The calibration values or offsets of these two parameters can be entered/changed in calibration menus of gateways and consoles.
On HOW TO CALIBRATE the values please have a look at the Calibrating sensor values chapter!
As I have no reference sensors for temperature and humidity, that would be suited to calibrate the WH32 outdoor's sensor values, I leave OutTemp Offset and OutHumi Offset at zero.
Firmware update
No user upgradable firmware.
Addons / spare parts
Mods and repairs
No known mods.
History
The predecessor of the WH32 outdoor is the WH26.
You want to know more: WH32 outdoor
1.3.2.2 Ecowitt WN32P
The sensor WN32P (Ecowitt Shop), also called WH32 [indoor] or WH32B, is the “main indoor sensor” for temperature, humidity and air pressure.
Froggit sells it together with the HP1000SE PRO console and has no certain name for this T&HP sensor. Garni calls it G090HP.
The WN32P is intended for use with many consoles (Ecowitt HP2550_C, HP2560, HP3500, WH2650, WH3800, WH3900/3910, …) and gateways (Ecowitt GW1100, GW1200, GW2000, GW3000), where it can also replace built-in sensors.
Only ONE WN32P sensor can be used per console/gateway and its temperature and humidity values are always represented as Indoor.
Some gateways and consoles like the GW3000 also measure indoor temperature, humidity and air pressure. If a WN32P sensor is registered on one of these consoles/gateways, then the WN32P values are dominant. That means: the gateway's T&HP values are NOT SHOWN. If you want to use your gateway's T&HP values, you'll have to deactivate the WN32P sensor in the Sensors ID menu. You want to know more: Sensor hierarchy
Technical information and data
Sensor specifications
Range | Accuracy | Resolution | |
---|---|---|---|
Air pressure | 300 - 1100 hPa (8.85 - 32.5 inHg) | +-5 hPa | 0.1 hPa (0.01 inHg) |
Temperature | -10°C - 60°C (14°F - 140°F) | +-0.3°C (+-0.5°F) | 0.1°C (0.1°F) |
Humidity | 1% - 99% | +-5% | 1% |
– LCD screen operating temperature range: -10°C - 50°C (14°F - 122°F)
Power supply specifications
– DC 3V (2 pcs. AA battery)
— Battery life: 1 year
Transmission specifications
– Sensor ⇒ Gateway/console:
— Distance in open field: 100 m (330 ft)
— RF frequency: 433/868/915 MHz depends on location
– Update interval: ~64 s
Other specifications
– International protection: IP44 (splashproof)
Unboxing
The WN32P comes with two screws, a small cable tie and a manual PDF.
Further information can be found on the sensor's product support page.
What else do I need?
Two 1.5V batteries size AA (IEC-R6) alkaline.
Initial installation
Open the battery compartment of the WN32P. You'll see a small DIP switch for selecting °C (left position) or °F (right position) as the displayed temperature unit.
Now insert two AA batteries and close the compartment door.
The sensor's LCD should at once show temperature, humidity and air pressure values.
Where to position this sensor? Of course it has to be positioned indoors and in an area, where your indoor temperature and humidity shall be measured. Important: the WN32P should not be located near heatings or directly near a window (sunshine!).
Connecting with a gateway or console
Normally a gateway or console in reach of the WN32P will receive its RF transmissions, automatically detect the new sensor and show its values e.g. on a display or in a WebUI (see Viewing live data below!).
If you want to be sure, that YOUR sensor is recognized by e.g. your console, you can open the Sensors ID menu. The picture shows the HP2550_C sensors ID list. The WN32P is registered as T&HP sensor with the ID d5 in this example.
This picture shows the same content in a GW2000's WebUI: on the Sensors ID page the WN32P is also registered as Temp & Humidity & Pressure sensor with the ID d5,- obviously that is the same sensor!
! Quick tip on finding the sensor's ID !
Viewing live data
The picture shows the WN32P data on a HP2550_C console. On the right side of the screen you can see the indoor temperature and humidity as well as the barometer reading (here the absolute air pressure [ABS]).
From the barometer reading the console calculates and shows the air pressure change direction (rising or falling arrow), the barometric rate of change (here: 0.5 hPa) and the weather forecast (here: cloud symbol).
Calibration
The WN32P measures indoor temperature, humidity and air pressure. The calibration values or offsets of these three parameters can be entered/changed in calibration menus of gateways and consoles.
On HOW TO CALIBRATE the values please have a look at the Calibrating sensor values chapter!
As I have no reference sensors for temperature and humidity, that would be suited to calibrate the WN32P's sensor values, I leave InTemp Offset and InHumi Offset at zero.
The same applies for Abs Offset, the offset of the measured (absolute) air pressure [ABS].
But how about the item Rel Offset?
In order to calibrate the barometric pressure and especially the Rel Offset please have a look at the calibrating the Barometric pressure chapter!
Firmware update
No user upgradable firmware.
Addons / spare parts
No addons.
Mods and repairs
The WN32P can be converted into a WH31 or WH32.
History
The predecessor of the WN32P is the WH25.
You want to know more: WH32B/WH32 indoor/WN32P
1.3.2.3 Ecowitt WN31
The sensor WN31 (Ecowitt Shop), also called WH31, is the “multi-channel sensor” for temperature and humidity.
Froggit sells it under the name DP50 and Garni under G092H or WH32F.
Up to 8 WN31 sensors (CH1..CH8) can be used per console/gateway and its temperature and humidity values are represented as T&H CHx or Temperature and Humidity CHx, where x = 1..8.
If you want to know, how many WN31 sensors are supported by your console or gateway, then these tables will help.
Technical information and data
Sensor specifications
Range | Accuracy | Resolution | |
---|---|---|---|
Temperature | -40°C - 60°C (-40°F - 140°F) | +-1°C (+-2°F) | 0.1°C (0.1°F) |
Humidity | 10% - 99% | +-5% | 1% |
– LCD screen operating temperature range: -10°C - 50°C (14°F - 122°F)
Power supply specifications
– DC 3V (2 pcs. AA battery)
— Battery life: 1 year
Transmission specifications
– Sensor ⇒ Gateway/console:
— Distance in open field: 100 m (330 ft)
— RF frequency: 433/868/915 MHz depends on location
– Update interval: ~61 s
Other specifications
– International protection: IP44 (splashproof)
Unboxing
The WN31 comes with two screws, a small cable tie and a manual PDF.
Further information can be found on the sensor's product support page.
What else do I need?
Two 1.5V batteries size AA (IEC-R6) alkaline or lithium (in cold climate areas).
Initial installation
Open the battery compartment of the WN31. You'll see a block of four small DIP switches (No 1..4) for selecting the Channel Number (No 1 to 3) and the Temperature Units (No 4).
DIP switch positions: On = up, Off = down.
Channel \ DIP-Switch ⇒ | No 1 | No 2 | No 3 | No 4 |
---|---|---|---|---|
CH1 | Off | Off | Off | N/A |
CH2 | On | Off | Off | N/A |
CH3 | Off | On | Off | N/A |
CH4 | On | On | Off | N/A |
CH5 | Off | Off | On | N/A |
CH6 | On | Off | On | N/A |
CH7 | Off | On | On | N/A |
CH8 | On | On | On | N/A |
– DIP switch No 4 selects the displayed temperature unit: On = °C, Off = °F.
Now insert two AA batteries and close the compartment door.
The sensor's LCD should at once show temperature and humidity values. The sensor's channel number can be found in the lower right corner of the LCD.
Where to position this sensor? Of course, where you want to measure local temperature and humidity! The WN31 can be used indoor and outdoor. If you want to position it outdoors, you must protect it against rain (e.g. with the Rain Shield) and you will get further information here:
! Quick tip on finding the right place for a T&H outdoor sensor !
Connecting with a gateway or console
Normally a gateway or console in reach of the WN31 will receive its RF transmissions, automatically detect the new sensor and show its values e.g. on a display or in a WebUI (see Viewing live data below!).
If you want to be sure, that YOUR sensor is recognized by e.g. your console, you can open the Sensors ID menu. The picture shows the sensors ID list in the GW2000's WebUI. Three WN31 sensors are registered as Temp & Humidity CH1..3 with the IDs a3, e9 and d5 in this example.
! Quick tip on finding the sensor's ID !
Viewing live data
The picture shows the live data of three WN31 sensors (CH1..3) red-rimmed in a GW2000 WebUI.
Calibration
The WN31 measures temperature and humidity. The calibration values or offsets of these two parameters can be entered/changed in calibration menus of gateways and consoles. The picture shows the menu Multi CH T&H Calibration in the GW2000's WebUI.
On HOW TO CALIBRATE the values please have a look at the Calibrating sensor values chapter!
As I have no reference sensors for temperature and humidity, that would be suited to calibrate the WN31's sensor values, I leave CHx Temp Offset and CHx Humi Offset at zero.
Firmware update
No user upgradable firmware.
Addons / spare parts
Mods and repairs
A WN31 can be converted to a WH32.
History
You want to know more: WN31
1.3.2.4 Ecowitt WN30
Like the WN31 the WN30 (Ecowitt Shop), also called WN37xN, is a “multi-channel sensor”, but unlike the WN31 it measures only temperature mainly in liquids with a cable probe, and doesn't measure humidity. The WN30 can be used to measure temperature in water (e.g. the pool), in fridges or even in soil.
Froggit sells it under the name DP30 and Ambient under WH31P.
Up to 8 WN30 sensors (CH1..CH8) can be used per console/gateway and its temperature and humidity values are represented as T&H CHx or Temperature and Humidity CHx, where x = 1..8.
If you want to know, how many WN30 sensors are supported by your console or gateway, then these tables will help.
Technical information and data
Sensor specifications
Range | Accuracy | Resolution | |
---|---|---|---|
Temperature | -40°C - 60°C (-40°F - 140°F) | +-1°C (+-2°F) | 0.1°C (0.1°F) |
– LCD screen operating temperature range: -10°C - 50°C (14°F - 122°F)
Power supply specifications
– DC 3V (2 pcs. AA battery)
— Battery life: 1 year
Transmission specifications
– Sensor ⇒ Gateway/console:
— Distance in open field: 100 m (330 ft)
— RF frequency: 433/868/915 MHz depends on location
– Update interval: ~61 s
Other specifications
– International protection: IP44 (splashproof), cabled probe: IP65 (waterproof)
Unboxing
The WN30 comes with two screws, a small cable tie and a manual PDF.
Further information can be found on the sensor's product support page.
You want to know more: WN31 and WN30
1.3.2.5 Ecowitt WN34D
The sensor WN34D (Ecowitt Shop) is a “Wider Measurement Range Temperature Sensor with 1 m Silicone Cable”. It measures only temperature in any wet temperature medium with a cable probe.
Up to 8 WN34D sensors (CH1..CH8) can be used per console/gateway and its temperature values are represented as Temp CHx or WN34 CHx, where x = 1..8.
If you want to know, how many WN34 sensors are supported by your console or gateway, then these tables will help.
Technical information and data
Sensor specifications
Range | Accuracy | Resolution | |
---|---|---|---|
Temperature | -55°C - 125°C (-67°F - 257°F) | -55°C - -10°C: +-2°C; -10°C - 85°C: +-0.5°C; 85°C - 125°C: +-2°C | 0.1°C (0.1°F) |
– LCD screen operating temperature range: -10°C - 50°C (14°F - 122°F)
Power supply specifications
– DC 1.5V (1 pc. AA battery)
— Battery life: 1 year
Transmission specifications
– Sensor ⇒ Gateway/console:
— Distance in open field: 100 m (330 ft)
— RF frequency: 433/868/915 MHz depends on location
– Update interval: ~77 s
Other specifications
– Cable probe: Programmable Resolution 1-Wire Digital Thermometer DS18B20 PDF
– International protection: IP66 (dust and water jet proof)
Unboxing
The WN34D comes with a mounting bracket, a hose clamp, a hexagon M12 screw, a screw D3.2*M2.0*6 and a manual
PDF.
Further information can be found on the sensor's product support page.
What else do I need?
One 1.5V battery size AA (IEC-R6) alkaline or lithium (in cold climate areas).
Initial installation
Open the battery compartment of the WN34D. You'll see a small DIP switch for selecting °F (left position) or °C (right position) as the displayed temperature unit. Now insert one AA battery and close the compartment door. The sensor's LCD should at once show temperature values.
Connecting with a gateway or console
Normally a gateway or console in reach of the WN34D will receive its RF transmissions, automatically detect the new sensor and show its values e.g. on a display or in a WebUI (see Viewing live data below!).
If you want to be sure, that YOUR sensor is recognized by e.g. your console, you can open the Sensors ID menu. The picture shows the sensors ID list in the GW2000's WebUI. The WN34D sensor is registered as Temp CH1 with the ID 7A6F in this example.
! Quick tip on finding the sensor's ID !
Viewing live data
The picture shows the WN34D sensor data (CH1) red-rimmed in the Ecowitt app (German language).
Calibration
The WN34D measures temperature. The calibration value or offset of this parameter can be entered/changed in calibration menus of gateways and consoles. The picture shows the menu Multi CH Temp Calibration in the GW2000's WebUI.
On HOW TO CALIBRATE the values please have a look at the Calibrating sensor values chapter!
As I have no reference sensor for temperature, that would be suited to calibrate the WN34D's sensor values, I leave CHx Temp Offset at zero.
Firmware update
No user upgradable firmware.
Addons / spare parts
No addons.
Mods and repairs
No known mods.
History
You want to know more: WN34D
1.3.2.6 Ecowitt WN35
The sensor WN35 (Ecowitt Shop) is a “Wireless Leaf Wetness Sensor for Garden and Farm”. It measures the moisture level of the nearby leaf or plant.
Froggit sells the WN35 as DP10, Ambient as WH51LW and Misol as WN35CN.
Up to 8 WN35 sensors (CH1..CH8) can be used per console/gateway and its moisture values are represented as Leaf CHx or WN35 CHx, where x = 1..8.
If you want to know, how many WN35 sensors are supported by your console or gateway, then these tables will help.
Technical information and data
Sensor specifications
Range | Accuracy | Resolution | |
---|---|---|---|
Moisture | 0% - 99% | +-10% | 1% |
– LCD screen operating temperature range: -10°C - 50°C (14°F - 122°F)
Power supply specifications
– DC 1.5V (1 pc. AA battery)
— Battery life: 1 year
Transmission specifications
– Sensor ⇒ Gateway/console:
— Distance in open field: 100 m (330 ft)
— RF frequency: 433/868/915 MHz depends on location
– Update interval: ~79.5 s
Other specifications
– International protection: IP66 (dust and water jet proof)
Unboxing
The WN35 comes with a hose clamp and a manual
PDF.
Further information can be found on the sensor's product support page.
What else do I need?
One 1.5V battery size AA (IEC-R6) alkaline or lithium (in cold climate areas).
Initial installation
Open the battery compartment of the WN35, insert one AA battery and close the compartment door.
The sensor's LCD should at once show moisture values.
Where and how to position this sensor? The sensing side (grid on the PCB visible) must face upwards. The sensor should be positioned near the plants to be monitored and should be leveled same as their leaf (0° - 30°). In general the best angle of the PCB is 60° facing north (see this article!).
Connecting with a gateway or console
Normally a gateway or console in reach of the WN35 will receive its RF transmissions, automatically detect the new sensor and show its values e.g. on a display or in a WebUI (see Viewing live data below!).
If you want to be sure, that YOUR sensor is recognized by e.g. your console, you can open the Sensors ID menu. The picture shows the sensors ID list in the GW2000's WebUI. The WN35 sensor is registered as Leaf Wetness CH1 with the ID 2C1D in this example.
! Quick tip on finding the sensor's ID !
Viewing live data
The picture shows the WN35 sensor data (CH1) red-rimmed on the Ecowitt Weather server.
Calibration
Calibration not necessary/possible.
Firmware update
No user upgradable firmware.
Addons / spare parts
No addons.
Mods and repairs
No known mods.
History
You want to know more: WN35
1.3.2.7 Ecowitt WH40
The rain gauge WH40 (Ecowitt Shop) is the so called Wireless Self-Emptying Rain Collector Rainfall Sensor. It is used in combination with single sensors and is also sold together with the WH5360_C console as WH5360 Wireless Rain Gauge … Weather Station with Indoor Thermometer and Hygrometer (Ecowitt Shop).
Froggit sells the WH40 as DP80, GARNI as G097R and Ambient as WS-5000-RAIN.
Only ONE WH40 rain gauge can be used per console/gateway and its amount of rain values are represented as Rain or Rainfall.
Since January 2025 a successor is also available: the WH40H (Ecowitt Shop). This new rain gauge comes with an UV resistant housing. It is equipped with the Heightened Rain Funnel with 15pcs Bird Spikes (see Addons / spare parts below!), has a better rainfall metering resolution (0.1mm) and an extended metering range (up to 9999mm).
Technical information and data
Sensor specifications
Range | Accuracy | Resolution | |
---|---|---|---|
Rainfall Metering | 0mm - 6000mm | +-5% | < 1000mm: 0.3mm; >= 1000mm: 1mm |
– Operating temperature range: -40°C - 60°C (-40°F - 140°F)
Power supply specifications
– DC 1.5V (1 pc. AA battery)
— Battery life: 1 year
Transmission specifications
– Sensor ⇒ Gateway/console:
— Distance in open field: 100 m (330 ft)
— RF frequency: 433/868/915 MHz depends on location
– Update interval: ~49 s
Other specifications
– International protection: IPX4 (splashproof)
Unboxing
The WH40 comes in a cardboard box containing:
- the WH40 housing,
- the funnel,
- the anti-debris spiral,
- mounting material (U-bolts, screws, …),
- [a stainless steel pole,]
- a manual PDF.
Further information can be found on the sensor's product support page.
What else do I need?
One 1.5V battery size AA (IEC-R6) alkaline or lithium (in cold climate areas).
Initial installation
Open the battery compartment and insert an AA battery. Close the battery compartment again.
The WH40 has to be mounted outdoors on a vertical pole. You should level it well with the help of the bubble level on top of the WH40 housing. Be sure that there is free sky above the sensor's funnel!
Connecting with a gateway or console
Normally a gateway or console in reach of the WH40 will receive its RF transmissions, automatically detect the new sensor and show its values e.g. on a display or in a WebUI (see Viewing live data below!).
! Hint ! If you encounter problems with the RF connection, be sure that the WH40's battery compartment points away from the WH40 - console line.
If you want to be sure, that YOUR sensor is recognized by e.g. your console, you can open the Sensors ID menu. The WH40 will be registered as Rain or WH40.
! Quick tip on finding the sensor's ID !
Viewing live data
The picture shows the WH40 data red-rimmed in a GW2000 WebUI.
Calibration
Normally the WH40 doesn't need a calibration. If you are using metric units for the amount of rain, then the item Rain Gain in the Rain Totals menu e.g. of the GW2000 WebUI should be set to 1.02.
Firmware update
No user upgradable firmware.
Addons / spare parts
– WH5360_C Console (Ecowitt Shop)
– Funnel (Ecowitt Shop)
– Filter anti-debris spiral (Ecowitt Shop)
– Bird Spikes (Ecowitt Shop)
– Mounting accessories for pole side (Ecowitt Shop)
– WH40 heightening block (Ecowitt Shop)
– Heightened Rain Funnel with 15pcs Bird Spikes (Ecowitt Shop)
Mods and repairs
History
The first WH40 hardware version could not send its battery values. Since 2021 the actual version V2.0.0 is able to transmit the real battery level.
You want to know more: WH40 / WH40H
1.3.2.8 Ecowitt WH41
The sensor WH41 (Ecowitt Shop) is a “PM2.5 Air Quality Sensor with Solar Power Panel”. It measures the fine particulate matter (PM2.5) concentration in the air.
Up to 8 WH41 sensors (CH1..CH8) can be used per console/gateway and its PM2.5 values are represented as PM2.5 CHx or WH41 CHx, where x = 1..8.
If you want to know, how many WH41 sensors are supported by your console or gateway, then these tables will help.
Technical information and data
Sensor specifications
Range | Accuracy | Resolution | |
---|---|---|---|
PM2.5 | 0 - 999ug/m³ | < 100ug/m³: +-15ug/m³; > 100ug/m³: +-15% | 1ug/m³ |
Power supply specifications
– Solar backup power (built-in solar cell)
– DC 2.4V (2 pcs. rechargeable NiMH AA battery)
— Battery life: 20 days (recharge every 2 weeks!)
Transmission specifications
– Sensor ⇒ Gateway/console:
— Distance in open field: 100 m (330 ft)
— RF frequency: 433/868/915 MHz depends on location
– Update interval: ~10 min
Other specifications
– International protection: IPX4 (splashproof)
– Solar panel (built-in)
Unboxing
The WH41 comes in a cardboard box containing the sensor itself, a Micro-USB to USB-A charging cable and two 1.2V rechargeable NiMH batteries with a capacity of 2400mAh each. A manual is also in the box PDF.
Further information can be found on the sensor's product support page.
What else do I need?
A mains power adapter is not provided with your WH41. You'll need it in order to charge the batteries in the WH41 every 2 weeks.
You can use any smartphone DC 5V power adapter with USB-A socket and a current > 1.0A. For me such an adapter with 5V 2.0A works fine.
! Hint ! If you have a battery charger for NiMH batteries size AA (IEC-R6), you can also take the batteries out of the WH41 and charge them with this charger. Then you don't need a power adapter.
Initial installation
Open the battery compartment of the WH41. Insert the two rechargeable NiMH AA batteries and close the compartment. The red LED will be steady on for 4 seconds and then flash once every 10 minutes.
Where to position this sensor? It can be positioned indoors and outdoors, but with its backup solar panel it is mainly intended for outdoor use. With 4 screws it can be mounted on a flat surface at about 1m above ground. It should not be exposed directly to rain, so should be mounted e.g. under an awning or under a roof overhang. Direct and indirect sunlight should reach the solar panel a few hours each day for charging the batteries.
! Hint ! It is important to mount the WH41 in a place, where you can easily reach it for charging (every 2 weeks!) and for maintainance. Main part of the WH41 maintainance is to clean the sensor when it is no longer showing correct reading.
Connecting with a gateway or console
Normally a gateway or console in reach of the WH41 will receive its RF transmissions, automatically detect the new sensor and show its values e.g. on a display or in a WebUI (see Viewing live data below!).
If you want to be sure, that YOUR sensor is recognized by e.g. your console, you can open the Sensors ID menu. The WH41 will be registered as PM2.5 CHx.
! Quick tip on finding the sensor's ID !
Viewing live data
The picture shows the WH41 sensor data (CH1) red-rimmed on the Ecowitt Weather server.
Calibration
The WH41 measures the PM2.5 concentration in the air. The calibration value or offset of this parameter can be entered/changed in the PM2.5 Calibration menu of gateways and consoles.
On HOW TO CALIBRATE the values please have a look at the Calibrating sensor values chapter!
As I have no reference sensor for PM2.5, that would be suited to calibrate the WH41's sensor values, I leave CHx PM2.5 Offset at zero.
Firmware update
No user upgradable firmware.
Addons / spare parts
Mods and repairs
- Permanent USB power supply:
https://www.wxforum.net/index.php?topic=42250.msg431507#msg431507 - Very low temperature mod:
https://www.wxforum.net/index.php?topic=43087 - Plexiglas “cover”:
https://www.wxforum.net/index.php?topic=41634.msg426370#msg426370
History
You want to know more: WH41 / WH43
1.3.2.9 Ecowitt WH45
Technical information and data
Unboxing
What else do I need?
Initial installation
Connecting with a gateway or console
Viewing live data
Calibration
Firmware update
Addons / spare parts
Mods and repairs
History
1.3.2.10 Ecowitt WH51
Technical information and data
Unboxing
What else do I need?
Initial installation
Connecting with a gateway or console
Viewing live data
Calibration
Firmware update
Addons / spare parts
Mods and repairs
History
1.3.2.11 Ecowitt WH55
Technical information and data
Unboxing
What else do I need?
Initial installation
Connecting with a gateway or console
Viewing live data
Calibration
Firmware update
Addons / spare parts
Mods and repairs
History
1.3.2.12 Ecowitt WH57
The sensor WH57 (Ecowitt Shop) is a lightning detection sensor.
Froggit sells it under the name DP60, Garni under G094L and Ambient under WH31L.
Only ONE WH57 sensor can be used per console/gateway and its informations are represented as a yellow lightning symbol or as Lightning.
Technical information and data
Sensor specifications
– Lightning detection range: 0 - 40 km (0 - 25 miles)
– Working temperature: -40°C - 50°C (-40°F - 122°F)
Power supply specifications
– DC 3V (2 pcs. AA battery)
— Battery life: 1 year
Transmission specifications
– Sensor ⇒ Gateway/console:
— Distance in open field: 100 m (330 ft)
— RF frequency: 433/868/915 MHz depends on location
– Update interval: ~79 s
Other specifications
– Internal lightning sensor: AS3935 Franklin Lightning Sensor IC
– International protection: IP44 (splashproof)
Unboxing
The Ecowitt WH57 comes in a cardboard box. If you open the box, it should contain the following parts:
- the WH57 sensor itself,
- a solar radiation shield *,
- a mounting arm (with mounting material) * and
- a user manual PDF.
*) These two parts belong to the Rain Shield, see the section Addons / spare parts below!
Further information can be found on the sensor's product support page.
What else do I need?
Two 1.5V batteries size AA (IEC-R6) alkaline or lithium (in cold climate areas).
Initial installation
Open the battery compartment of the WH57. You'll see a block of four small DIP switches (No 1..4) for selecting Indoor/Outdoor (No 1), Short/Long Antenna (No 2) and High/Default/Mid/Low Sensitivity (No 3 and 4).
DIP switch positions: On = up, Off = down.
Sensitivity \ DIP-Switch ⇒ | No 1 | No 2 | No 3 | No 4 |
---|---|---|---|---|
5. Very High | On | Off | On | Off |
4. High | Off | Off | On | Off |
3. Default | Off | Off | Off | Off |
2. Middle | Off | Off | Off | On |
1. Low | Off | Off | On | On |
It is recommended to initially leave all 4 DIP switches in the Off (down) position. That is the 3. Default sensitivity (outdoor use), and the sensor uses its so called long antenna.
Now insert two AA batteries and close the compartment door.
The sensor's red LED indicator should be steady off and flash every 79 seconds.
Where to position this sensor? According to the manual it should be positioned outdoors, high above the house's roof and at least 5 m away from the building. But from experience it also works well in most indoor locations, e.g. near a window, in the attic or in a backyard shed.
The WH57 is only splashproof (IP44). That means, it must be protected against rain. The Rain Shield is a good solution for this purpose and comes with the WH57. So you should mount it in this shield for outdoor use.
! Quick tip on finding the right sensitivity setting !
- Whether the WH57 is mounted indoor or outdoor: normally leave switch no 1 Off (down) ⇒ outdoor.
- ALWAYS leave switch no 2 Off (down) ⇒ long (default) antenna.
- If the WH57 detects false positive lightning events, lower the sensitivity level to 2. Middle or in a second step to 1. Low.
- If the WH57 doesn't detect real lightnings within a radius of 40 km (25 miles), increase the sensitivity level to 4. High or as an exception to 5. Very high.
- If the WH57 often indicates noise (LED flashing for 2s) or interference signals (LED steady on for 2s), then firstly (re)set the sensitivity level to 3. Default and find another (low interference) location for the sensor or in a second step also lower the sensitivity level.
Connecting with a gateway or console
Normally a gateway or console in reach of the WH57 will receive its RF transmissions, automatically detect the new sensor and show its values e.g. on a display or in a WebUI (see Viewing live data below!).
If you want to be sure, that YOUR sensor is recognized by e.g. your console, you can open the Sensors ID menu. The WH57 will be registered as Lightning or WH57.
! Quick tip on finding the sensor's ID !
Viewing live data
The picture shows the WH57 data on a HP2550_C display.
In the upper right corner of the screen you can see the lightning detection sensor information in real-time. The lightning icon flashes, whenever lightning strikes are detected.
Calibration
Calibration not necessary/possible.
Firmware update
No user upgradable firmware.
Addons / spare parts
Spare part:
Rain Shield (Ecowitt Shop)
Mods and repairs
No known mods.
History
You want to know more: WH57
1.3.2.13 Ecowitt LDS01
Technical information and data
Unboxing
What else do I need?
Initial installation
Connecting with a gateway or console
Viewing live data
Calibration
Firmware update
Addons / spare parts
Mods and repairs
History
1.4 IoT devices
IoT stands for Internet of Things and means a networked world full of smart connected devices. Actually Fine Offset produces two so called IoT devices: the WFC01, an intelligent water timer valve, and the AC1100, an intelligent electric switch.
On one hand these IoT devices are sensors as they send data (e.g. measured values) to a gateway or console. On the other hand they are actors. That means they can DO SOMETHING either remotely controlled or programmed. In order to do this they also have to receive data or commands from a gateway or console. This RF (radio frequency) connection betweeen IoT devices and gateways/consoles is called bidirectional, because data are transmitted and received on both sides.
You want to know more: Ecowitt Automation IoT - WFC01 Wittflow AC1100 Wittswitch
1.4.1 Ecowitt WFC01
1.4.2 Ecowitt AC1100
1.5 Cameras
The only camera in the Ecowitt world is called HP10.
1.5.1 Ecowitt HP10
1.6 Addons and spare parts
For addons and spare parts visit the Ecowitt Shop and select Accessories. In the accessories menu you can choose your device and find out, which accessories exist for it.
Froggit also sell spare parts for their Fine Offset weather stations (among other things) in their Shop. The same do Ambient Weather (Shop), other brands' shops (Garni, Misol, DNT …) and several regional or global trading platforms.
2 Procedures
Here we'll explain some concepts and describe procedures like connecting devices, updating firmware and so on in general, that means independently of certain devices. This has become necessary because procedures e.g. like calibration have device related aspects and also general aspects that we will summarize here.
The single sections in this chapter are somewhat disjointed, but reading them can be instructive nevertheless.
2.1 General explanations
Here you'll find some general explanations of important concepts, some quick tips, and so on.
! Quick tip on using the right names for devices and packages !
The naming of devices (sensors, gateways, consoles …) and their packages can be a bit confusing - but apart from very few exceptions, whole station kits and the single devices have different names (letter-number combinations).
If you keep in mind that a station in this WiKi is always a console plus sensors / sensor array, you won't go wrong.
This becomes important in the case of trouble shooting when you speak of a console or a sensor(array) but use the station name instead.
e.g you have a HP2553 station kit/package (= the HP2550 console + the WS80 6-in-1 outdoor array + the WH40 rain gauge) and say:
my HP2553 doesn't show proper rainfall .
It's the HP2550 console !!.
Then it can easily become difficult and confusing for those who want to help and support as it's not clear what exactly the user is talking about. The console ? The sensors ? Which ones ? .
Clear and precise language also accompanied by a picture can make the supporters' live easier and your issue solved faster.
What you could say is:
“I own a HP2553 station and on my console I can't see rainfall even though it has rained.”
… or …
“My HP2550 console doesn't show the rainfall from my WH40 rain gauge even though it has rained”.
2.2 Positioning of devices
Here you'll find some information on the right positioning of devices.
! Quick tip on finding the right place for a gateway !
Of course the gateway or console must be placed indoors. There are a few more aspects to consider:
- Connection to WLAN/Ethernet: if your gateway is connected via LAN, it must of course be in reach of an Ethernet socket of your router or LAN switch. If you use WLAN instead, the gateway has to be positioned within the router's WLAN coverage.
- Connection with sensors / IoT devices: probably you will add some sensors and/or sensor arrays to your gateway. So you have to take in account, that the farthest sensor must also be able to reach the gateway.
- Position of e.g. the GW2000's temperature/humidity cable sensor: the GW2000's sensor cable is about 80cm long, this is the distance from the gateway, in which you can use/position this sensor. That means, you will measure these two parameters in this area. If you want to measure indoor temperature and humidity in another place or room, you'll have to use a separate T&HP sensor.
! Quick tip on finding the right place for a T&H outdoor sensor !
The Ecowitt single sensors like the WH32 outdoor are only splashproof (IP44). That means, they must be protected against rain. In addition, they should not be in direct sunlight and near materials, that warm up and cool down slowly or reflect solar radiation like walls, asphalt or metal parts.
So a good position is on the north side of buildings at least one or two meters away from the building's wall and about 2m (6.5ft) above ground. Another good position can be hanging in a less leafy tree (also not in direct sunlight, so e.g. on the north side of that tree or in a tree standing in the shadow of a bigger building).
Anyway a rain protection is a MUST. The Rain Shield (Ecowitt Shop) is a good solution for this purpose and is also sold together with the WH57 sensor.
As a protection against solar radiation there are better options, see here!
2.3 Installing and using software
2.4 Connecting sensors/IoT devices to gateways/consoles
Here you'll find some information on connecting sensors or IoT devices to gateways or consoles.
! Quick tip on finding the sensor's ID !
Every sensor (array) has a unique ID (identification number), with which it can be registered on gateways and consoles. Normally the ID can be found on a small sticker somewhere on the sensor or in its battery compartment.
For details have a look into the FAQ section of the main WiKi: where do I find the SensorID of my sensors ?
If there is no ID sticker in or on your sensor, you can open the Sensors ID menu of your gateway or console BEFORE you activate your (new) sensor and (if necessary) scroll to the part of the ID list, where the correct type of your new sensor is shown. Then put batteries into your sensor and watch the Sensors ID menu. The new appearing sensor should be YOUR sensor, and its ID is then displayed.
It's a good idea, to write your sensor IDs down!
! Quick tip on registering a sensor !
If a (new) sensor isn't recognized automatically by your console or gateway, first put it in a distance of about 1..1.5m (3..5ft) to your console or gateway and wait a few minutes. Also be sure, that the sensor is working (e.g. showing measured values on its LCD) and the batteries are ok. If it doesn't appear in the Sensors ID list, where its type should appear, you should first tap on Re-register and again wait some time. If that doesn't help, you can try to register the sensor directly with its ID.
The upper part of the picture shows the edit dialogue of the HP2550_C's Sensors ID screen. You can first try to (Re-)Register the sensor and -if that doesn't help- enter the sensor's ID and choose Save to register with the sensor's ID.
In the GW2000 WebUI's Sensors ID menu you can also first try to Re-register this sensor.
If that doesn't help, you'll find the same edit dialogue as mentioned above also in the GW2000's WebUI (see the lower part of the picture!). Here you can enter the correct ID and hit Save.
With these procedures you should be able to register every sensor successfully.
! Note ! In the described edit dialogues you can also Disable a sensor. That means, that its sensor values are NOT USED ON THIS GATEWAY OR CONSOLE any more. The sensor itself stays active and can be registered and used on OTHER gateways or consoles. You should disable all sensors you don't want to use or don't know. At any time you can enable a disabled sensor again.
2.5 Connecting gateways/consoles to a local [W]LAN network
2.6 Connecting gateways/consoles to an internet weather service
Of course if you want to watch your new weather station from everywhere in the world, so it should upload your weather data to one or more internet weather services.
2.6.1 Ecowitt Weather
In order to connect to the Ecowitt Weather service, the Ecowitt Weather Cloud, open its login page, enter your login data and hit Login.
If you are not yet registered, tap on Register (red circle in the above picture!), enter the necessary data and hit Save. Then return to the login page and login.
The Ecowitt Weather page opens. From the menu choose Devices and tap on + Add Device. You'll see the Add Device window (see picture!). Fill in the necessary data. As Device Type select Weather Station and from MAC/IMEI select MAC.
Enter your gateway's MAC address in the MAC/IMEI field. If all data are complete, hit Save.
Your weather station (here a GW2000 for example) is registered in Ecowitt Weather (see picture!). From the menu choose Dashboard and enjoy your public weather data.
As a registered user your Dashboard will open from now on as the defult web page when you login.
2.6.2 Weather Underground
In order to connect to the Weather Underground (“Wunderground”) service, open its login page, enter your login data and hit Log In.
If you are not yet registered, tap on Sign Up, enter the necessary data and hit Save. Then return to the login page and login.
When registering a device, you will be asked for your device hardware. You can either choose “Ambient WS-2000” or “other”.
If you are logged in to Wunderground, go to My Profile and choose Member Settings.
In this menu select MY DEVICES and tap on Add New Device (red circle in the picture!).
Adding a new device is a four step process:
- 1. Select a device type (upper left picture!)
- 2. Set device name & location (upper right picture!)
- 3. Tell us more about your device (lower left picture!)
- 4. Registration complete (lower right picture!)
In the fourth step Wunderground assigns a Station ID and a Station Key to your device.
The right picture shows the Weather Services page of a GW3000's WebUI. The only thing you have to do at last is to enter the Station ID and Station Key in the corresponding fields and hit Save.
! Note ! It is also possible to configure your station for Wunderground with the WSV+ app!
Now your station is online on Weather Underground and you can find it under the address:
https://www.wunderground.com/dashboard/pws/[Station ID]
2.6.3 Weathercloud
In order to connect to the Weathercloud service, open its login page, enter your login data and login.
If you are not yet registered, tap on Register, enter the necessary data and hit Register.
Weathercloud sends an email to your email address. Activate your account by clicking on the provided link. Then return to the login page and login.
If you are logged in to Weathercloud, open your Profile and choose Devices.
In this menu Your devices tap on Create device (red circle in the picture!).
The Create new device page opens and you have to fill in the fields in the sections Basic Information, Location and Coordinates.
As Model you can choose either Ecowitt “GW Series” or Ecowitt “HP Series”, both will work. For WS-2000/4000/5000 Ambient consoles choose “WS-2000 series”.
As Link type you should choose “WS View”.
If you are satified with your device description, hit Create.
Your device has been created, in the Your devices window for example with the name My Station's Name.
Now tap on Settings and from the drop-down menu select Link device.
In the Link device window you'll find the Weathercloud ID and Key assigned to your station.
The picture shows the Weather Services page of a GW3000's WebUI. The only thing you have to do at last is to enter the Weathercloud ID and Weathercloud Key in the corresponding fields and hit Save.
! Note ! It is also possible to configure your station for Weathercloud with the WSV+ app!
Now your station is online on Weathercloud and opens, if you tap on My Station's Name in the Your devices window (see picture above!). Create a link to this site on your desktop.
2.6.4 Weather Observations Website
In order to connect to the Weather Observations Website (“WOW”), open its login page, enter your login data and login.
If you are not yet registered, tap on Sign Up on the WOW login page, enter the necessary data (right picture!) and hit Register.
WOW sends an email to your email address. Activate your account by clicking on the provided link. Then return to the login page and login.
Now enter your station data (see right picture!) in the sections 1. Choose a location for this site, 2. Site Details, 3. Site Owner Details, 4. Site Data Preferences and 5. Additional Information.
- Under 2. Site Details you can choose an Authentication Key, e.g. a 6-digit number. This key will be used as your Station Key later. So write it down!
- Under 4. Site Data Preferences you have do enter six single characters, which stand for certain attributes of your station and its sensors. You'll find the definition of these attributes here!
If you are done, hit Complete. The message Site Created! appears. Tap on View Site to see your new site!
Now your site e.g. with the name Your Station's Name opens, still without any data. But below the map you'll see your Site ID (red circle in the picture!). This ID will be used as your Station ID later. So copy it or write it down!
The picture shows the Weather Services page of a GW3000's WebUI. The only thing you have to do at last is to enter the WOW Station ID and WOW Station Key in the corresponding fields and hit Save.
! Note ! It is also possible to configure your station for Weather Observations Website with the WSV+ app!
Now your station is online on WOW and you can find it under the address:
https://www.wow.metoffice.gov.uk/observations/details?site_id=[Site ID]
2.6.5 Customized
In the Weather Services settings of consoles and gateways you'll find the sections “Ecowitt Weather”, “Wunderground”, “Weathercloud” and “WOW”.
In addition there is also a fifth section called “Customized” or “Ind. Server”, where you can enter own server access data like the protocol type, server IP / hostname, port, upload interval and path.
2.6.5.1 AWEKAS
In order to connect to the AWEKAS server, open its login page, enter your login data and login.
If you don't have an AWEKAS account yet, you'll have to create one.
On the Create Account page you enter your username, password, email address and language. Then you have to fill in the fields in the sections Location, Weather station, Information and Additional.
If you are satisfied with your account description, hit Save.
AWEKAS tells you, that Your user profile has been saved and starts the account activation by sending you an email with an Activation code.
Then you enter your Username and the received Activation code on the AWEKAS User activation page. Now the user activation is complete and you can return to the login page by tapping on next.
The picture shows the Customized section of the Weather Services page of a GW3000's WebUI. The only thing you have to do at last is to enter your Username and Password in the Station ID and Station Key fields. The right picture also shows how to fill in the other fields and checkboxes in this section. If everything looks fine, hit Save.
Now your station is online on AWEKAS and you can find it under the address:
https://www.awekas.at/de/instrument.php?id=[AWEKAS ID]
! Hint ! Where is my AWEKAS ID? If you are logged in to AWEKAS, choose My AWEKAS and from the drop-down menu select Change user data. Your AWEKAS ID can be found e.g. on this page.
2.7 Updating a device firmware
2.8 Calibrating sensor values
2.8.1 Barometric pressure
Normally a measured parameter should be calibrated before any further calculations are made with it. This applies of course also to the barometric pressure and I would have to calibrate the barometric Abs Offset at first.
But: what if you don't have an exact reference measuring instrument for your local absolute air pressure [ABS]? I don't have one. Of course I have other barometers, but they all aren't precise enough to be a reference for my Ecowitt T&HP sensor, that has an accuracy of +-5 hPa (so the T&HP sensor itself could even be a good reference for my other barometers).
Of course there are other weather stations near my position and there are also internet charts, that show the actual air pressure near or at my location. But these data are all relative air pressure at sea level values! So I cannot directly compare my locally measured (absolute) air pressure value with the disposable comparables!
Now what do do?
The answer is: I leave my Abs Offset at zero and at first calculate the Rel Offset. If I do this well, I will be able then to compare the resulting relative air pressure [REL] with nearby weather stations, airports or internet charts.
In calibration menus of gateways or consoles the item Rel Offset or REL Barometer adjusts the absolute air pressure at your location to the relative air pressure at sea level.
! Hint ! January 2025: Ecowitt has introduced a permanent calculation/correction of the normalized sea level pressure with the V2.0.0 firmware of the HP2550_C console. In March 2025 this feature was also added to the GW3000 (with firmware V1.0.4). Further consoles and gateways will follow soon.
Advantage: you only have to set the altitude of your barometric sensor above sea level (see item Altitude for REL in the picture!) and the relative air pressure is calculated (PDF) automatically.
The relative air pressure can be calculated with the Barometric Formula. The derivation of this formula is e.g. here.
A good online calculator can be found on the Starpath Free Online Barometer Calibration page. The left part of this calculator helps you to find the elevation above sea level of your location('s ground).
Then you have to add the height above ground of your gateway/console or T&HP sensor (means: of its barometric sensor!) to the elevation above sea level of your location. This is your weather station's altitude (⇒ altitude = elevation + height).
Then you enter this altitude in the right side of the calculator, together with the temperature (default: 15°C or 59°F) and the absolute air pressure (default: 1013.25 hPa or 29.92 inHg). Now the SLP (sea level pressure) is calculated as well as the Corr value (for a standard atmosphere, if you use the mentioned default values). This is the Rel Offset or REL Barometer item in the gateway's / console's Calibration menu and you can enter this Corr value there. Done!
You can take this as a first approach. There is indeed much more to say about SLP calibration! But: now you also have your SLP and can compare it with neighbour weather stations or local internet data.
! Note ! Comparing data, especially air pressure, with your neighbouring private weather stations can be tricky - because who knows if their owner has calibrated the relative pressure properly or not. Taking an offical public weather station located at the same height might be more advisable.
If you have subscribed (free) to the AWEKAS weather service and post your station data also there, AWEKAS offers a comparison option for AWEKAS-registered stations in a 10, 20, 50, 100 km radius, which can give you some idea about the correctness of your calibration: Examples
The next step could be to compare your SLP with a nearby airport's SLP or QNH and then also to adjust the Abs Offset or ABS Barometer setting.
! Hint ! SLP and QNH are derived from different methods. Explanation see here!
You want to know more: Ecowitt barometer calibration and How to calibrate the air pressure of your console
2.8.2 Temperature
A common methode to calibrate a sensor is the comparative calibration. With this method the sensor is compared with a better reference measuring instrument. Better in this case means, that the reference should have an accuracy, that is three or four times better than the sensor to be tested. As modern integrated sensors normally have a high linearity over the whole measuring range, a comparative one-point calibration can be used in most cases. |
---|
According to the technical data Fine Offset temperature sensors have an accuracy of +-0.2°C to +-1°C. So I think for a “normal user” (like me!) it will be hardly possible to obtain a significantly better reference sensor.
What to do now?
Options:
- 1. I leave the Temp Offset values of all my (air) temperature sensors at zero. Reason: they are exact enough for my needs.
- 2. I define ONE OF MY (AIR) TEMPERATURE SENSORS as reference for all my other sensors and one-time calibrate every present (and every new purchased) sensor with this reference. After this the Temp Offset of my reference sensor of course stays at zero. The Temp Offsets of all my other sensors can be adjusted according to this one-time calibration.
Option 1 is quite clear, but why should I choose option 2?
The disadvantage: your sensors won't become more accurate.
The benefits:
– a) All (air) temperature sensors (indoor and outdoor) of your weather station show the same value for a given temperature wherever they are located.
– b) If I would really manage to obtain a significantly better reference sensor one day, I would only have to calibrate my previous “reference sensor” with this much better reference. Then I could adjust the Temp Offsets of all my sensors accordingly without the need to demount them for a one by one calibration.
! Note ! Why do I speak about (air) temperature sensors here? Answer: because usually you cannot use an air temperature sensor like the WN32P, WH32 outdoor or WN31 as reference for e.g. soil (WN34S) or liquid (WN30, WN34L, WH36) temperature sensors and vice versa!
Which of my sensors should I use as (internal) reference for my other sensors? I've chosen my WN32P T&HP sensor for this purpose, because I have it good reachable indoors and because it measures THREE parameters (temperature, humidity and air pessure) and therefore I can define ONE sensor as reference for three parameters.
Another possibility would be to take a sensor known for its good accuracy, e.g. a WH31-EP, as your reference for (air) temperature and humidity. Your choice!
2.8.3 Humidity
Everything mentioned in the 2.8.2 Temperature chapter above is also applicable to the calibration of (air) humidity values.
2.9 Storing and retrieving sensor data
2.9.1 SD card in consoles or gateways
2.9.1.1 GW3000
2.9.1.2 HP2550_C
… to be continued …