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

Use a free, downloadable app with these switches to automate alarms in your facility, such as sounding a buzzer if a trailer door is opened after a certain time.

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.

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 programmable code.