1、【High Accuracy】Premium-quality sensors ensure high accuracy of measurement data, with high sensitivity, ultra-low power consumption, one-button refresh, fast response. 2、【Digital Display】It is equipped with a large digital display that allows you to view temperature, humidity, and remaining battery life clearly on the screen, even at night. 3、【Scene Linkage】It can be used as a temperature and humidity data source, and a lot of automation can be done according to the data source. Support custom scene setting, you can preset the alarm value of temperature and humidity in APP, when the test value reaches the alarm value, APP will push the alarm. 4、【Temperature Monitoring】Automatically turn on the air conditioner in hot weather, pre-set in the APP to reach a certain temperature and automatically turn on or off the air conditioner. 5、【Humidity Monitoring】Automatically turn on the humidifier when the air is too dry, and automatically turn on or off the humidifier when a certain humidity level is pre-set in the APP. Material: ABS Working Voltage: DC 3V Recommended Temperature Range: -9.9℃~60℃ / 14℉~140℉ Recommended Humidity Range: 5%RH-95%RH Battery: 2 * AAA battery (Not included) Item Size: 51 * 51 * 17mm / 2.01 * 2.01 * 0.67in Item Weight: 21g / 0.74oz 1 x Temperature and Humidity Sensor 1 x Auxiliary Tool 1 x Adhesive Paper