Wired Magnetic Door Contact Alarm Reed Switch

OC-60 NC+NO Alarm Rolling Gate Garage Door Contact Magnetic Reed Switch

OC-55 NO+NC Alarm Security Rolling Gate Garage Contact Magnetic Reed Switch

MC-58 NC+NO Alarm Security Rolling Gate Garage Door Contact Magnetic Reed Switch

Magnetic Reed Switch Normally Open or Closed NC NO Door Alarm Window Security G3

Home Security Wired Rolling Door Contact Magnetic Reed Switch Alarm

5 Window/Door Switch Magnetic Reed Honeywell Contact Alarm Security GRI & DSC

10X N.C. Recessed Wired Security Contact Sensor Alarm Magnetic Reed Switch