10pcs RC-36 N.C. Recessed Magnetic Wired Door Contact Sensor Alarm Reed Switch

5/10Pcs RC-36 NC Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch

5/10Pcs RC-36 NC Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch US

5/10Pcs RC-36NC Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch USA

10pcs RC-36 Recessed Wired Window Door Contact Sensor Alarm Magnetic Reed Switch

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

10Pcs RC-33 NC Recessed Wired Door Contact Sensor Alarm Magnetic Reed Switch USA

2pcs RC36 NC Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch White