Xiaomi Mi window & door sensor

Privacy protection, information wherever you areIf the sensor detects unwanted movement, it will automatically alert you with sound and send information through the network gateway, which will notify the user of the situation.Door openingAutomatic switching on of the light after sensing the door frame has shifted.Air purifier serviceXiaomi air purifier automatically turns off when the window opens.Easy installationInstallation to any flat surface is enough to stick on. Removing the sensors does not damage the door frames or the surface.High-quality workQuickly connect to the gateway and other smart devices via Zigbee technology. The button can withstand tens of thousands of clicks, and typical battery life reaches two years. The whole is enclosed in flame-resistant housing.