HC-34A NC Recessed Wired Gate Contact Sensor Alarm Magnetic Reed Switch White

Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch

2pcs RC33 NC Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch White

Alarm Security Rolling Gate Garage Contact Magnetic Reed Switch

1 Set RC-33B NC+NO Magnetic Window Door Contact Alarm Reed Switch Recessed

2 Sets Wired Alarm Security Magnetic Door Contact Reed Sensor Switch White

RC36 NC Recessed Wired Door Contact Sensor Alarm Magnetic Reed Switch White

MC-51 Surface Mount Wire NC Door Contact Sensor Alarm Magnetic Reed Switch White