Feature of tuya wifi temperature and humidity sensor1. The temperature and humidity sensor can be linked with other smart home devices to improve indoor heating and cooling and make your home more comfortable; 2. Low advantage design to ensure long-term battery life; Built-in high-precision digital can quickly and accurately find temperature and humidity changes; /anytime;5. The LCD screen dynamically displays real-time values, conveys the comfortable state of the home environment, is connected to the gateway and cloud platform, and the mobile APP can view current and historical temperature data; Light intensity value and set feedback Auto Power on according to Light intensity value; WiFi humidity and temperature sensor Specification: Detect Lum inous intensity (with Light sensor) Push notification to cellphone Battery type: AA * 2pcs (battery not included) Wireless Type: 2.4GHz Wi-Fi Distance: 40m Working Temperature: -10 ~ 60 (14 F ~ 140 F) Working Humidity: 0% ~ 100% storage temperature: 0 ~ 60 (32 f ~ 140 f) > storage humidity: 0% ~ 90% network protocol: ieee 802.11b/g/free app: tuyasmart or smart life. Support: Android and iOS Voice Control: Amazon Alexa and Google Assistant Size: 84mm x 55mm x 32mm Note: Battery is not included in the package!.