Weather Stations Wireless Indoor Outdoor Color Display Black 3 Channels Regulable Backlight Clock Thermometer for Home Item Type: Weather Stations Wireless Indoor Outdoor Product Material: ABS Host Temperature Detection Range: 0℃ to 50℃ Host Humidity Detection Range: 20% to 99%RH Transmitter Temperature Test Range: - 50℃ to 70℃ Transmitter Humidity Detection Range: 20% to 99%RH Battery Parameters: Transmitter: 2 AA Batteries (Battery Not Included) Main Unit: 3 AAA batteries (Battery Not Included) Host Function: Show Moon Phase, Indoor and Outdoor Temperature, Humidity Display, Forecast the Weather for the Following 24 Hours, Comfort level display (five level environmental comfort level display) Pressure Value Display: Pressure Value Range: 600hpa/mb to 1100hpa/mb Week Display:Eight National Languages Are Available (ENG, GER, ITA, FRENCH, NET, SPANISH, DAN, RUS) Default English Transmitter Parameters: Display: Switchable Display, Celsius and Fahrenheit Transmission Distance: Approx. 80meters / 87.5yd Pair: Press The "TX" Button for Quick Test Pairing with the Host Weight: Approx. 347g/12.2oz