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

Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch

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

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

RC-35 NC Recessed Wired Gate Contact Sensor Alarm Magnetic Reed Switch White

Surface Mount Wired Door Sensor Alarm Magnetic Reed Switch

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

RC-36 NO Recessed Wired Door Contact Sensor Alarm Magnetic Reed Switch White