1. High precision. Sensors are from top suppliers. It can guarantee high accuracy of measurement data. 2. Intuitive comfort index. Sensitive children and the elderly may be cold when you are not aware of subtle changes in the weather, using intuitive expressions to help you understand comfort easily. 3. Real-time monitoring and recording. Sensors will monitor temperature and humidity in real time. You can view the changes on the screen. Record temperature and humidity history on the APP and display it graphically. 4. APP local monitoring. Through the APP (Smart Life or Tuya Smart), you can monitor the temperature and humidity on the APP, but it must be within the range of Bluetooth connection. 5. APP remote monitoring. If it is connected to tuya's Bluetooth gateway, you can monitor the temperature and humidity on the APP anywhere. Super-mini Bluetooth Temp &Humidity sensor. Through the cute expression changes, you can grasp the comfort of the temperature and humidity of the sur-rounding environment at any time, which is intuitive andeasy to understand. Scene linkage: The sensor can be used as a temperature and humidity data source for Tuya Smart, for Smart Life, for Amazon Alexa, and for Google Home. You can perform many automated processes based on data sources. Note:This function requires Bluetooth gateway support. Third-party voice support: The sensor supports for Amazon Alexa and Google Home Assistant. You can check the current temperature and humidity with your voice. Note:This function requires Bluetooth gateway support. Power supply:CR2032 (included) Wireless type:Bluetooth 5.0 BLE Temperature measurement range:-9.9℃-60℃ Temperature accuracy:±1℃ Humidity measurement range:0%RH-99%RH Humidity accuracy:±5%RH Weight:24g Colour:White Material:ABS Size:4.5x4.5x1.5CM <br /