[Smart Home Security Sensor]- The door sensor is an excellent security addition to any contact structure: front door, window, baby room, garage doors, skylights, , etc. Watching the security barrier at the top of the stairs. All the statuses of doors and 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 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, , etc. Watching the security barrier at the top of the stairs. All the statuses of doors and 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,- linkage Support App remote control and third- voice control Battery: AA*1 (Delivered without batteries) Battery Life ( standby ): 1 year Wireless Protocol: Thread Wireless Frequency: 802.15.4 /PHY @ 2.400 - 2.483GHz Wireless Distance: 45M Working Temperature: 0 - 50(32 - 122) Working Humidity: 1% - 85%RH (non-condensing) Size:Main body: 87mm x 27mm x 23mm Colour:White Material:ABS Package Contents: 1 * Matter Door Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.