[Set Up Your Smart Routines]- Extend your smart home automation with Tuya ZigBee 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. [ZigBee 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 Zigbee 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). Input voltage: 3V LR03 Static current: 45uA Alarm current: 130mA Low power undervoltage: 2.4V Wireless connection: Zigbee 3.0 Magnetic distance: 15mm Battery: DC 3V LR03 (AAA battery, not included) Alarm mode: cell phone APP notification push (Smart Life / Graffiti Intelligent) Function Introduction: [2.4GHz WiFi One button connection easy setup] [Detect door and window status] Multi-sensor linkage alarm APP remote control Easy Installation Colour:White Material:ABS Package Contents: 1 x Smart 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.