These switches actuate when a magnet comes within sensing distance, and reset when the magnet moves away.

Prevent unauthorized use—these switches require coded magnets to actuate. They cannot be bypassed using ordinary magnets.

These switches detect magnetic objects—or objects with a magnet attached—through non-magnetic walls.

Set onto metal surfaces for a secure mount.

No electricity or batteries are needed—as your door opens, the magnet and contact disc are separated, sounding a mechanical chime.

Arm and disarm these alarms with a key.