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Manual & tutorial


1)Wireless outdoor temperature (°F or °C) and humidity (%RH)
2)Indoor temperature (°F or °C) and humidity (%RH)
3)Support 3 outdoor sensors measures temperature and humidity in different spots.
4)Records min. and max. Temperature and humidity
5)Barometric pressure (inHg, mmHg or hPa)
6)Weather forecast
7)Time and date by manual setting or DCF Radio controlled time and date (only 868MHz support DCF time reception)
8)12 or 24-hour time display
9)Perpetual calendar
10)Time alarm with snooze
11)Moon phase
12)LED backlight
13)Wall hanging or free standing
14)Included transmitter (Outdoor sensor)
15)Synchronized instant reception

Display content: 


2.Moon phase
3.Weather forecast icon
4.Radio controlled clock
5.Week day
7.Absolute/relative barometric pressure selection
8.Barometric pressure
9.Outdoor sensor signal
10.Channel number
11.Outdoor temperature
12.Max outdoor temperature
13.Min outdoor temperature
14.Outdoor humidity
15.Min Outdoor humidity
16.Max outdoor humidity
17.Indoor temperature
18.Max indoor temperature
19.Min indoor temperature
20.Indoor humidity
21.Min indoor humidity
22.Max indoor humidity


Wireless Specifications
Line of sight wireless transmission (in open air): 100meter / 300 feet
Frequency: 433/868/915 MHz depending on location
Update Rate: 64 seconds
Measurement Specifications
The following table provides specifications for the measured parameters.

Measurement Range Accuracy Resolution
Indoor Temperature 0-50°C ± 1 °C 0.1 °C
Outdoor Temperature -40 to 60°C ± 1 °C 0.1 °C
Indoor Humidity 10 to 99 % ± 5% (only Guaranteed between 20 to 90%) 1 %
Outdoor Humidity 10 to 99% ± 5% (only guaranteed between 20 to 90%) 1 %
Barometric Pressure 300hpa to 1100hpa ±3 hpa(only guaranteed between 700 to 1100hpa) 0.1hpa

Power Consumption
Base station : 5V DC adaptor (included)
3 x AAA 1.5V Alkaline batteries (not included)
Remote sensors : 2 x AA 1.5V Alkaline batteries (not included)
Battery life: Minimum 12 months for base station
Minimum 24 months for thermometer-hygrometer sensor (use lithium batteries in cold weather climates)





Parts List


Display console

Frame Dimensions (LxWxH): 161.5*86*21.5mm


WN31(WH31) Thermo-hygrometer transmitter

Dimensions (LxWxH): 122*40*18mm


Power adapter

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