A Zigbee Smart Recessed Sensor is the hidden version of a door/window contact sensor.
Instead of the 2-piece white box you stick on the frame, it's a small cylinder that you drill into the door frame / door edge, so it's completely invisible when the door is closed.
How it works
- Main sensor tube in the frame + a small magnet in the door. When the magnet moves away (door opens), it triggers.
- Protocol: Zigbee 3.0 / ZHA 1.2 - Needs a Zigbee hub/gateway
1. Invisible security: No one can see you have a sensor from inside or outside - clean look, good for front doors, rental, or premium homes.
2. No false knocks-off: Stuck-on sensors fall off. Recessed can't.
3. Automation: When door opens/closes you can trigger:
- Lights ON/OFF
- AC OFF if window open
- Security alert / notification
- Arm alarm mode