Usage Tips:1. High precision: The sensor uses top suppliers. It can guarantee the high precision of the measurement data. 2. Real-time monitoring and recording: The sensor will report when the temperature and humidity changes very little. You can view the changes in the value on the APP or display screen.Record the temperature and humidity changes on the APP, and use the graphics to show you. 3. Backlight Supported: The sensor has backlight, it make you browser the screen clear at night. 4. Wide viewing angle: We have carefully designed the viewing range of the LCD screen, compared to other types of similar products, our viewing angle is wider. 5. Scene linkage: The sensor can be used as the temperature and humidity data source of Tuya Smart, Smart Life, , Google Home. You can do many automated processes based on the data source. 6. Temperature Unit Switch: The sensor is designed with a temperature display conversion function of Celsius and Fahrenheit. You can choose the unit that needs to be displayed according to your needs. 7. voice support: The sensor supports , Google Home Asistant. You can check the current temperature and humidity by voice. supply: Battery LR03-1.5V/AAA*3 (not included) Backlight: Supported Wireleass: WiFi 2.4GHz IEEE 802.11 b/g Temperature Measure Range: -9.9Celsius-60Celsius Temperature Accuracy: 1 Humidity Measure Range: 0% RH~99% RH Humidity Accuracy: 5% RH Colour:White Material: ABS Package Contents: 1 x Temperature Humidity Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.