WN31(WH31) Multi-Channel Temperature and Humidity Sensor

Regular price $10.99
Regular price Sale price $10.99
Shipping is calculated at checkout. (For EU customers: For parcels shipped via [Standard]YunExpress / 4PX / others, VAT is included.)
Packaged version & Sensor or gateway link frequency: North America MHz 915
Regular price $10.99
Regular price Sale price $10.99

❥❥Wireless Thermometer Hygrometer: this sensor measures current temperature and humidity with digital display; supports up to 8 channels allowing you to monitor your whole house(additional sensors sold separately) wirelessly [Accessory Only, Can Not Be Used Alone]

❥❥Live Data on Free APP: requires a GW1000 WIFI Gateway(★★sold separately);After the WIFI configuration, the live multi-channel temperature and humidity data can be viewed directly on the WS View App

❥❥Remote Monitoring & Email Alerts: supports uploading to our free Ecowitt Weather server(ecowitt.net) to view all the data graph / download history records / set Email alerts for all the sensors on the website(requires the GW1000 gateway)

❥❥Up to 8 channels supported: allows you to track temperature and humidity at up to 8 locations (additional sensors sold separately), can be placed at your living room/bedrooms/baseroom/garage/guitar room/baby room and more; Each channel name can be customized as you like

❥❥Long Transmission Range : the sensor data is transmitted every 61 seconds using RF wireless signal up to 300 feet (100 meter) range;wall-mountable or hanging design - easy to Install


Measures temperature and humidity.

With display and work with GW1000 WIFI gateway(sold separately) to complete the WIFI configuration on our WS View App.

After the WIFI configuration, the live multi channel temperature and humidity data can be viewed directly on the WS View App.

Supports up to 8 sensors(additional sensors sold separately).

Transmission distance in open field: 100m(300 feet)

Fahrenheit and Celsius selectable

If you choose to upload the data to our own weather server, you can view the history graph and downlaod the history records on the website.

Works with HP3501/HP3500/HP2551/HP2553/GW1001/GW1002/GW1003/WS2910 WiFi Weather Station


Power:2 AA batteries(not included)

Sensor Size: 123x42x14mm

Temperature range:-10°C – 60°C (14°F - 140°F)

Temperature resolution:0.1°C, or 0.1°F

Temperature accuracy: ±1°C

Humidity range: 10% ~ 99%

Humidity resolution:1%

Humidity accuracy: ± 5%

Sensor reporting interval: 61 seconds

Package Content:

Package Content:

1X Multi-Channel Temperature and Humidity Sensor


The sensor actually can measure from -40F - 140F(-40C ~60C) and send the data to receiver. However the screen display of the sensor might not work below 14F(-10C).

Compatibility Instructions

for all ecowitt network consoles

Please follow the table to make sure you choose the right sensors and concoles before check out.
Note: The "1/4/8/16" means 1 console supports 1/4/8/16 sensors
( excluding accessories )

Customer Reviews

Based on 30 reviews
Michael Lierheimer
Fast Delivery of Sensor

Good seller. The delivery of the sensor was very fast and the components were as specified.

Cheap and reliable

I like the fact that they have both a display and the wireless signal for data logging.

great little units

drop in the battery and they (3 supplied) were up and reporting in to my Ecowitt apps without effort. will be ordering the other 5 chanels

Angus Ross-Thomson
Good price, works well

We bought this to add to our Ecowitt system to monitor a greenhouse. On powering the sensor up, it logged straight on the system and has been working well. A good price, I will probably order another.

Robert Murray
An economical and effective system addition

I am overall quite impressed by the Ecowitt Weather monitoring equipment, and particularly appreciate their concern with accuracy. The sensor works as advertised, and integrated into the system automatically without fuss. I do have one suggestion - the first installation instruction is 'install the batteries', then on the next page it says 'before installing the batteries set the dip switches first' - if only those statements had at least been on the same page....