5pcs RC-33 NC Recessed Wired Security Contact Sensor Alarm Magnetic Reed Switch

5pcs Wired Door Contact Sensor NC Surface Mount Magnetic Reed Switch Black

3pcs RC-35 NC Recessed Wired Security Sensor Alarm Magnetic Reed Switch White

Door Window NO/NC Recessed Security Contact Sensor Alarm Magnetic Reed Switch

5Pcs Recessed Wired Security Window Gate Contact Sensor Alarm Magnetic Reed Swit

5Pcs RC-33A NO Recessed Wired Security Door Contact Sensor Alarm Magnetic Switch

5pcs RC-35 NC Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch

5pcs RC-36 NC Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch Part