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

New 10 x RC-33 NC Wired Door Contact Sensor Alarm Magnet Reed Switch 7-17mm

ABS 10 x RC-33 NC Wired Door Contact Sensor Alarm Magnet Reed Switch

MC-31 Wired Surface-Mounted NC Magnetic Door Window Contact Sensor Alarm Reed Sw

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

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

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