This is a multi-purpose color screen weather clock for indoor use. A practical and useful device for home and office use. You will easily know the indoor temperature and humidity from this device. It is made of material, which is durable and lasting for use. Features - Color: Black. - Material: Plastic+coated glass. - Size: About 16.10X11.50X3.50cm/6.33X4.52X1.38inch. - Battery: Battery (Not Included). - Measures humidity and temperature, very practical and durable, and humidity level icons indicate conditions. - Allow you to response ahead of time, such as adjusting your thermostat or humidifier in advance. - Time dual-ring alarm function, can be set for weekday alarm and weekend alarm. - Easy to operate and use, , long serving time. - Record of maximum and minimum indoor and outdoor temperature, multi-purpose and practical. Specification Time calendar display: January 1,2000 to 31, 2099 12HR/24HR display selection Weekly display in 7 languages: English, German, Italian, French, Spanish, Holland language, Danish Time double alarm function (can be set to alarm on weekdays and alarms on weekends) Snooze function can be set for 5~60 minutes Indoor temperature display range: 0 degree centigrade~+50 degree centigrade and +14 fahrenheit scale~+122 fahrenheit scale, display resolution: 0.1 degree centigrade and fahrenheit scale Indoor humidity display range: 20%RH~95%RH, display resolution: 1% temperature display range: -20 degree centigrade~+70 degree centigrade and -4 fahrenheit scale~+158 fahrenheit scale, display resolution: 0.1 degree centigrade and fahrenheit scale Outdoor humidity display range: 20%RH~95%RH, display resolution: 1%RH Temperature display format selection ( degree centigrade/ fahrenheit scale) Indoor environment comfort display 6-level weather (predict the weather in 12 hours): sunny, cloudy, cloudy, rain, heavy rain, snow ASK receiving OUTDOOR transmitter, up to 3 effective channels 3-level backlight selection-USB power supply mode Outdoor temperature upper and lower alarm and alarm function. Temperature, humidity trend display Record of the maximum and minimum indoor and outdoor temperature 10 seconds backlight function-battery mode Power supply: host: 2×1.5V "AA" (without batteries) Transmitter: 2×1.5V "AA" (without batteries) Package list: 3 clock 3 x USB power cord 3 3 x manual in five languages