MC-51 NO Alarm Rolling Gate Garage Door Contact Magnetic Reed Switch Silver Gray Bit Sockets The stainless steel is not

The stainless steel is not absolutely rustless

Weight: 412g

hardened to increased torque power

slide flexible

Dimension: 46 x 19 x 33mm / 1

MC-51 NO Alarm Rolling Gate Garage Door Contact Magnetic Reed Switch Silver Gray Bit Sockets The stainless steel is notDescription: 1. Actuation Distance: 10 15mm. 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. NO means Normally Open: when the magnet separate, the circuit is conductive( light on ); When the magnet together, the circuit is not conductive ( light off ).