[Remote Control] You can remotely view temperature and humidity via smartphone using the app, Tuya Smart or Smart Life. [Third Party Voice Support] This sensor supports Google Home Assistant. You can view the current temperature and humidity through voice commands. [Battery Life] Uses 2 x AAA batteries (not included). [LCD Screen Display] The sensor uses an LCD screen to display temperature and humidity. [High Precision] Sensors use top-tier suppliers. It provides high accuracy in measurement data. [Temperature Unit Conversion] The sensor has a temperature conversion function between Celsius and Fahrenheit degrees. You can choose the units to display as needed. The switching speed is related to the set data update frequency. [Memory Function] You can always save the historical temperature data in the app. [Scene Linkage] This sensor can serve as a temperature and humidity data source for Smart Life and Google Home. You can perform various automated processes based on the data source. [Wifi Version] Wifi + Bluetooth, connects faster with dual-mode Wifi and Bluetooth. Connection speed is twice as fast compared to Wifi only. [Sharing Function] Share with family for common control. [Real Time Monitoring and Recording] For Wifi version, it actively reports when the temperature changes by more than 1 degree, and automatically reports when humidity changes by more than 6% (no change, no report; mandatory report every eight hours if no change). Specifications: Product Name: Temperature Humidity Sensor Dimensions: 51 x 51 x 16.5mm Battery: 2 x AAA (not included) Working Temperature: -9.9C to 60C Wireless Protocol: 2.4GHz Wifi Working Humidity: 5%RH to 95%RH Temperature Accuracy: 1C Humidity Accuracy: 5% RH Color: White Material: Plastic Package Contents: 1 x WiFi Thermometer 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 to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm.