App Control Easy Setup Smart And Convenient Advanced Technology Energy-saving Sensor Energy Efficient Seamless Connectivity Description: Power supply: AAA * 3 battery (excluding battery) Backlight: Supported Wireless: WiFi 2.4GHz IEEE 802.11 b/g/n Temperature measurement range: -10 -55 Temperature accuracy: 1 Humidity measurement range: 10% RH~99% RH Humidity accuracy: 5% RH Features --High precision sensors are sourced from top suppliers. It can ensure high accuracy of measurement data. --Real time monitoring and recording: When the temperature and humidity change is very small, the sensor will report. You can view the changes in values on the app or display screen. Record the changes in temperature and humidity on the app and show them to you in graphics. --Backlight support: The sensor has backlight, which allows you to browse the screen clearly at night. --Angle adjustment: With bracket design, the angle can be adjusted appropriately --&: The sensor is designed with 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. --We have carefully designed the viewing range of the LCD screen, and compared to other types of similar products, our viewing angle is wider. --Scene linkage: This sensor can serve as a temperature and humidity data source for Doodle Intelligence, Smart Life, Amazon Alexa, and Home Asistant. You can perform many automated processes based on the data source. --The temperature unit switch is designed with a temperature display conversion function between Celsius and Fahrenheit. You can choose the units you want to display as needed. --Third party voice support: This sensor supports Amazon Alexa and Home Asistant. You can view the current temperature and humidity through voice. --Connect to the network faster with WiFi+ dual-mode. Connecting to the network is twice as fast as WiFi only --The version of the app is more stable and less prone to disconnection (requires a 3.0 gateway to use) --Sh