1、Monitor the switch status of doors and windows or pet fence 2、Can judge the intensity of light with its new light sensor 3、Support intelligent linkage with other smart home devices to offer convenient and smart life. 4、Timed out reminder and support mobile phone sync push(need to work with gateway ) 5、Also can be secured on the pet fence. When the pet runs out of the fence, the camera will automatically record the video and push it to the mobile phone. Description: The new Xiaomi Window and Door Sensor 2 with new light sensor enables to realizes the combination of opening and closing, lighting and more scenes. Features: Monitor the switch status of doors and windows or pet fence Can judge the intensity of light with its new light sensor Support intelligent linkage with other smart home devices to offer convenient and smart life. Timed out reminder and support mobile phone sync push(need to work with gateway ) Also can be secured on the pet fence. When the pet runs out of the fence, the camera will automatically record the video and push it to the mobile phone. Specifications: Product name: Xiaomi door and window sensor 2 Product model: MCCGQ02HL Product size: 34.0×32.7×14.5mm Wireless connection: BT 5.1BLE Battery model: CR2032 Working temperature: -10℃~50℃ Working humidity: 0%-95%RH Mi Home APP: Download the APP on the Play or APP Store The APP supports muti-language setting If APP connection fails, please switch the region to China on the APP setting, then reconnect. Note: * Phone synchronous push and abnormal status alert function need to use with the devices with BT gateway function. (not included) * More smart scenes through Mi Home APP need to use with devices with BT gateway function. * During installation, try to align the installation marks on the side of the main body and the magnet, and paste them in the required opening and closing areas (it is recommended that the sensor body be installed on the fixed surface of the opening and closing area, the magnet should be installed on the active surface of the opening and closing area, and the installation gap should be less than 18 mm when the doors and windows are closed) Installation and Connection: 1. Tear off the protective film 2. Download the Mi Home APP on Play store and APP store 3. Open the app and add the sensor 4. Try to align when installing 5. Scan the QR code of product 6. The installation clearance is less than 18mm 7. The connection is successful Package List: 1 * Sensor 1 * Magnet 1 * Sensor 1 * Magnet