Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch

RC-36 NC Recessed Wired Door Contact Sensor Alarm Magnetic Reed Switch Brown

2pack MC-38 Surface Mount Wired NO Door Sensor Alarm Magnetic Reed Switch White

2pcs MC-51 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White

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

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

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

1 Set RC-33B NC Magnetic Window Door Contact Alarm Reed Switch Recessed