Door and Window Security Reed Switch (28x14mm)

Sensor with Magnet (Set)

Commonly used with security and alarm systems for doors or windows to sense when they are opened or closed.

Each sensor set includes a pre-wired switch with 28cm (11-inches) of wire.

The switch portion mounts to the non-moving part, while the included magnet is attached to the section which moves.

Reed switch is triggered when the magnet with within approximately 10mm (0.4-inches). The sensor features both a normally-closed (the circuit is made when in close proximity to the agent) and is open when not in the proximity of the magnet.