MC-52 NC/NO Alarm Security Rolling Garage Door Contact Magnetic Reed Switch 2Set Abrading & Polishing Durable Material - Aluminum rivet

Durable Material - Aluminum rivet body and steel rivet mandrel with Zinc Plated finish

2 x Suitcase Handle

It can withstand high impact force and absorb with the main body of door suction to achieve a good sealing effect

Chromium Steel (GCr15) made with heat treating

Thickness (B): 8mm

MC-52 NC/NO Alarm Security Rolling Garage Door Contact Magnetic Reed Switch 2Set Abrading & Polishing Durable Material - Aluminum rivetDescription: 1. Actuation Distance: 20 35mm. Silver gray zinc alloy housing. 2. The reed switch is an electrical switch operated by an applied magnetic field. 3. Designed for use with alarm systems. Great for use in family and factory window, door. etc. 4. Screw Mounted for easily install. 5. NC means Normally Closed: When the magnet together, the circuit is conductive( light on ); when the magnet separate, the circuit is not conductive ( light off ).