Features REAL TIME MONITORING AND RECORDING: The sensor will monitor temperature and humidity in real time. You can view the changes on the screen. Record the temperature and humidity history on the app and display it graphically. INTUITIVE COMFORT INDICATOR: Sensitive children and the elderly may already feel cold when you are not aware of subtle changes in weather, and the WiFi thermometer and hygrometer uses intuitive expressions to help you easily understand comfort. REMOTE MONITORING: The WiFi thermometer hygrometer monitor supports local monitoring of the app, through the app for Tu ya Smart, you can monitor the temperature and humidity, but only within the range of a Bluetooth connection. APP Remote Monitoring, if you are connected to your Blue Tooth door, you can monitor temperature and humidity anywhere. HIGH PRECISION: Temperature and humidity sensor adopts the best suppliers, which can guarantee the accuracy of measurement data. SCENE LINKING: The temperature and humidity sensor can be used as a source of temperature and humidity data for Tu ya Smart and for Goog le Home, and you can perform many automated processes based on the data source. Specification: Item Type: WiFi Thermometer Hygrometer Power supply: built-in CR2032 button battery capacity 150mAh Wireless Type: Bluetooth 5.0 BLE Temperature measurement range: -10℃-60℃; -49.8℉~140℉ Temperature accuracy: ±1℃(33.8℉) Humidity measurement range: 0%RH to 99%RH Humidity accuracy: ± 5% RH Package list: 1 x hygrograph. 1 x Adhesive Paper 1 x User Manual Package List 1 x Hygrograph 1 x Adhesive Paper 1 x User Manual