Mi Door and Window Sensor 2 is for notification when the door is opened or closed or window and also as a light sensor! Attaches to anything that opens or closes with double-sided adhesive tape that allows easy installation . Set up warnings for unexpected openings or for doors that have been left open for a certain amount of time. You can use it on doors, windows, refrigerators, closets, boxes, and even toilet seats.

Magnetic induction sensor determines the open or closed status. After connecting to Bluetooth Gateway , view device status from your smartphone anytime, anywhere. For example, sensors can be connected to a camera via the gateway, and whenever your child or pet opens the door, the smart camera can automatically record the event, upload it to the cloud, and send an alert to your smartphone.

Mi Door and Window Sensor 2 is a sensor 2-in-1 - sensor detects that the ambient lighting is dimmed and connects to smart lighting and triggers the nighttime ambient light of the entrance light.
Mi Door and Window Sensor 2 connects to your smartphone via Bluetooth so you can see its status at any time of the day. It also connects to products with built-in Bluetooth gateway functionality so you can see status remotely, receive opening and closing alerts, and connect to other smart products.