[Smart Home Security Sensor]- The door sensor is an excellent security addition to any contact structure: front door, window, baby room, garage doors, skylights, safes, etc. Watching the security barrier at the top of the stairs. All the statuses of doors and windows will be displayed simultaneously in the app. No hub required. [Set Up Your Smart Routines]- Extend your smart home automation with Tuya Matter door sensor door sensor; you can set up smart routines in app(Automatically turn on your smart wall switches or lights when door opened/Automatically turn off your air-condition when window opened)More smart devices can be sync as long as they compatible with "Smart Life" app. [Matter Door Sensor With Free App Alerts]- The smart door and window sensor is compatible with Smart Life App and Tuya Smart App. You will receive an alarm signal from your phone App when the door sensor find your door or window opened. No more need to afraid someone enter your home without permission. [Smart Home Security Sensor]- door sensor is an excellent security addition to any contact structure: front door, window, baby room, garage doors, skylights, safes, etc. Watching the security barrier at the top of the stairs. All the statuses of doors and windows will be displayed simultaneously in the app. No hub required. [Home Automation] Extend your smart home automation with a Matter door sensor; Set up your smart routines in the Tuya Smart/Smart Life app or Alexa; For example, Automatically turn on your smart wall switches or lights when the door opens(A delay of 6-8s is normal in the hibernation state). Matter Thread USB Door Sensor/Window Sensor Detect open/close status of the door/window Button for Alarm on/off Support Matter protocol,run in multi-platforms,cross-brand linkage Support App remote control and third-party voice control Battery: AA*1 (Delivered without batteries) Battery Life ( standby ): 1 year Wireless Protocol: Thread Wireless Frequency: 802.15.4 MAC/PHY @ 2.400 - 2.