New 10 x RC-33 NC Recessed Door Contact Sensor Alarm Magnet Reed Switch

10Pack N.C. Recessed Wired Security Window Door Contact Sensor Alarm Reed Switch

New 10 x RC-33 NC Recessed Door Contact Sensor Alarm Magnet Reed Switch

5 x Wired Door Contact Sensor NO Surface Mount Magnetic Reed Switch Brown

5 x Wired Door Contact Sensor SHOP NC Surface Mount Magnetic Reed Switch

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

3pcs RC-33 NO Recessed Wired Security Sensor Alarm Magnetic Reed Switch White

Magnetic Reed Switch RC-35 NC/NO Recessed Wired Door Window Alarm, Magneti Do...