AAA Battery Powered Door and Window Sensors are AAA battery-powered for a long-lasting performance. It is used to detect whether doors, windows, drawers and so on are opened or moved in your absence. When the battery is running out, you will receive an App notification. AAA batteries not included in the box.
DIY InstallationNo tools required. Comes with adhesive tape and screws. Install anywhere using adhesive tape or screws, change placement whenever, wherever you want. You can install the alexa door sensor on front doors, garage doors, liquor cabinets, safety deposit box, pet doors and more. The contact sensor is also a good option as a mailbox sensor
No hub requiredThis smart home door and window sensor system works with your home Wi-Fi 2.4GH z. Only No hub required! Just Simply download the 'Tuya' App. The sensors easily install in any entrance which provide you flexible placement options.
What's in the boxDoor Sensor, Screws, Double Side Tape, User Manual, Reset pin. (AAA batteries not included)