
It was easy to connect and the perfect size for this type of sensor. It comes with a small sticky circle to stick it to or on objects. I warn you, this is a special sensor, it's not exactly the same as a door open sensor or motion sensor. It measures vibration, so it can be used to track openings of cabinets, watch drawers, or other closed objects. You could probably use it for doors or windows as well, but considering other Aqara parts designed for those specific purposes, they might be better suited for those functions. This is a truly unique sensor for home automation or home security, especially at this price point.

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