Professional and practical indoor outdoor thermometer hygrometer, made of ABS materials, and has excellent durability and practicality. Wireless temperature humidity monitor updates and transmits temperature and humidity is fast, greatly helps you monitor all the locations you care about the most. Features -Color:Black -Material:ABS -Size:15.20X9.55X2.20cm/5.97X3.75X0.86in -Size:10.50X5.00X2.60cm/4.13X1.97X1.02in - Power supply: 3 x AAA batteries(Not included) - Measuring range: - Indoor temperature display range: -9.9 degree centigrade ~ +50 degree centigrade & 14 fahrenheit scale ~ +122 fahrenheit scale - Indoor humidity range: 20%-95% RH - Outdoor temperature display range: -40 degree centigrade ~ +60 degree centigrade & -40 fahrenheit scale ~ +140 fahrenheit scale - Outdoor humidity range: 20%-95% RH - Resolution: - Temperature display resolution: 0.1 degree centigrade & 0.1 fahrenheit scale - Humidity display resolution: 1%RH - Error: - 0 degree centigrade to 40 degree centigrade/ 32 °F to 104 °F: ±1 degree centigrade/1.8°F - -20 ~ 0 degree centigrade/40 degree centigrade ~ 65 degree centigrade/-4 fahrenheit scale ~ scale/104 fahrenheit scale ~ 149 fahrenheit scale: ±2 degree centigrade/3.6°F - 40%RH to 80%RH: ±5%RH - Manufactured with sturdy ABS shell material, you can keep this weather thermometer for a long term of using. - This room humidity gauge is easy to read due to its bright LCD screen with large numbers. - Wireless weather thermometer for indoor and outdoor can measure indoor temperature and humidity. - With the hygrometer for outdoor and indoor, always gives you the latest changes of temp and humidity. - Indoor and outdoor digital thermometer is suitable for homes, offices, hospitals and other places. Package list: 5 Thermometer 5 x Launcher