【App and Voice Remote Control】You can remotely view temperature and humidity via smart phone using the app Smart Life or Tuya Smart; No any Hub required; As long as you have WIFI (2.4ghz) or internet; Works with Alexa and Google home; 【Scene linkage】Create smart scene in the App to achieve home automation with other smart devices, for example, use together with IR remote controller, when the environment temperature turns to 25 degrees, open the AC; 【Real-time monitoring and recording】The sensor will monitor the temperature and humidity in real time. You can view the changes in the value on the APP. Record the temperature and humidity changes on the APP, and use the graphics to show you. (when the first time activated, it needs to take 30 minutes to detect and show the environment data) 【Long Battery Life】Use AAA'2pcs(battery are not included). The battery life depends on the time interval as you choose, usually, it can last for several months if we choose 120min to update; 【Easy to Use and Connect】Users can use the app to add the device in smart life app in 3 ways, Bluetooth or wifi or hotspot; And easy to carry everywhere, hotel, home, office, hospital, etc.;