Shelly BLU Door/Window ZB White

Paired it with my ZigBee hub in under a minute and it's been rock solid since. I get a push alert the second the back door opens, which is exactly what I wanted for peace of mind.

Pairing it with my ZigBee hub took maybe a minute, and the magnet gap is forgiving enough that my crooked old door frame didn't cause false alerts. The white casing blends into the trim so well I keep forgetting it's there until the app pings me.

Slapped this on the back door and it's been rock solid for a month, no false triggers even when the wind rattles the frame. The white casing is small enough that it basically disappears against the trim, and battery life is still showing full.