The 1000-96LV BMS High Security Magnetic Contact is a 3 1/2″ long heavy duty over head door contact that comes with a substantial 2 3/4″ wide gap to prevent false alarms on OHD doors with a sloppy fit. This magnetic contact has one SPDT door switch and one SPDT magnetic tamper switch when magnet is present. The switch has six color coded wires and the rare earth magnet has a universal mount L-Bracket. Armored cable, 18″ long, and epoxy sealed electronics make it impervious to harsh environments. Provide your customers more than just a door switch, give them time tested inexpensive Flair high security contacts with built in magnetic tamper.