Product Description: Color: White Material: ABS Size: 8*5.9*2.2 cm Temperature: -4F ~ 158F (-20C ~ 70C) Humidity: 10%~99% Temperature Resolution: 0.1C/0.1F Humidity Resolution: 1%RH Battery Use: Built-in lithium battery Temperature Measurement Range: -9.95C Humidity Measurement Range: 10%-99%(RH) Temperature Measurement Accuracy: -9.95C Temperature Resolution: 0.1C Humidity measurement accuracy: & BUSMN5 (RH) Humidity resolution: 1 (RH) Temperature measurement error: 1 () Humidity measurement error: 5% (RH) Package includes: 3*Thermometer Hygrometer Description: For a healthy indoor climate: With the practical room thermometer, you can keep an eye on the temperature and humidity thanks to the clear display and now have control over the indoor climate in the rooms where you spend most of your time, e.g. living room, bedroom, children's room, office and storage room. Advanced high-precision sensor: Built-in with an accurate and sensitive sensor, the thermo-hygrometer updates the temperature and humidity every 10 seconds; Temperature measuring range: -20 ~ 70 Celsius, optionally in Celsius and Fahrenheit; Humidity: 10% ~ 99%. Smiley comfort indicator: The humidity meter shows the condition of the room climate using symbols with a smiling face, indicating whether the values are within the recommended range or whether action is required. Flexible mounting: The integrated magnet allows the indoor hygrometer to be attached to metal surfaces. Energy-saving battery: Built-in lithium battery, so you can use the thermometer indoors right out of the box. The battery lasts 18 to 24 months with normal use.