ttSpecifications 1.Wireless Weather Station, digital weather station  2.Storm warning alarm  3.Wireless outdoor and indoor temperature,rain fall Specifications:

1. Outdoor temp. range: -40.0°C to + 65.0°C (-40°F to +149°F)
2. Indoor temperature range: 0°C to + 50.0°C (32°F to +122°F)
3. Humidity range: 1% to 99% (1% resolution)
4. Transmission range up to 330 feet (100m)
5. Power consumption:  a) Receiver: 3 x AA alkaline batteries (not included) b) Sensor WH1: 2 x AA alkaline batteries (not included)
6. Transmission frequency: 433MHz Set includes: 
7. Receiver 
8. Three outdoor sensors: thermo-hydro transmitter, wind sensor, and rain sensor Features:  1) Wireless outdoor and indoor temperature (°F or °C); 2) Wireless outdoor and indoor humidity (% RH) 3) Barometric pressure (inHg or hPa) with 0.1hPa resolution 4) Rainfall data (inches or millimeters): 1-hour, 24-hour, and total  5) Wind speed (mph, m/s, km/h, knots, Beaufort); 6) Wind chill (°F or °C); 7) Dew point (°F or °C) 8) Weather forecast display by weather icons (sunny, cloudy, rainy) based on changing barometric pressure  9) Weather forecast tendency arrow 10) Storm warning alarm 11) Display of extensive weather data, in all cases with programmable alarm functions for certain weather conditions as well as records of all minimum and maximum values along with time and date of their recordings 12) Time and date with manual setting; 13) 12 or 24-hour time display 14) Perpetual calendar; 15) Time zone setting; 16) High light LED backlight; 17) Wall hanging or free standing  18) Synchronized instant reception 19) Low power consumption (over 2 year battery life for transmitter)