1. Built- in Rechargeable battery : can be powered by external DC5V power supply or standby battery (Please note : if you want to power the detector via backup battery ,Please open the back cover and switch on the detector) .
2. Temperature Unit is optional （Centigrade or Fahrenheit ）.
3. Check the History Record of temperature or humidity anytime.
4. Multi -User Supervision Supported : you can click to share the device to other users .
5. Buit in Buzzer : the Buzzer will sound when the detector was triggered.
6. APP: you can download it by searching forTuya Smart orSmart Life
