• 40.8 × 20.8 × 11mm

• Zigbee

• CR1632

• -10℃ to 50℃

• 0-95% RH, non-condensing

• 10.5 dBm

• 2405 MHz-2480 MHz

• Senses whether a window/door is open or closed

This window/door sensor includes a main sensor body and a magnet, which work together to determine whether the window/door is open or closed.

• Smart connectivity for personalized living

Combine with other Mi Smart Home devices and discover a variety of ways to combine your smart devices. Use your imagination to customize your smart home experience.

• Security protection, monitor remotely

When the Mi Smart Home Hub is in Security Mode, opening the window/door triggers the camera to record a short video and send a push notification to your phone.

• Open the door, lights turn on

Open the front door and the living room lights turn on automatically. Let technology take care of it for you.

• Open the window, air purifier turns off

The air purifier will be turned off automatically when a window is opened for ventilation, saving you both time and energy.

• Compact and easy to set up

No need for installation. Just remove the protective film at the back and attach it wherever you like. Won't damage your home doors, windows or furniture. Its compact form saves space.

• Premium quality and superb craftsmanship

The sensor connects wirelessly to other devices using ZigBee gateway technology, for fast and reliable connectivity.  The batteries can last up to 2 years* under normal conditions.

• Easy to install

1. Remove the protective film from the sticker.
2. Ensure that the installation mark on the side of the main body is aligned with the mark on the side of the magnet.
3. Attach the separate parts to the surface where it opens and closes. (The main body should be attached to the fixed surface of the opening/closing area, and the magnet should be attached to the moving surface of the opening/closing area. The gap at the point of installation must be less than 22 mm when the door/window is closed.)