5 Alarm Terminal Recessed Door Window Security Switch Sensor Contact

5 Recessed Door Jam Window Sill Security Alarm Reed Switch Sensor Hidden DSC GRI

5 Recessed Plunger Ball Alarm SYSTEM Switch Reed Sensor Contacts Door Window

5 Recessed BROWN Door Window Security Alarm Reed Switch Contact 3/8 push sensor

10 Recessed Door Window Security Alarm Reed Switch

5 Alarm Terminal Recessed Door Window Security Switch Sensor Contact

10 Recessed BROWN Door Window Security Alarm Reed Switch Contact 3/8 push sensor

5 Recessed Door Window Reed Switch Sensor Contact Normally Open Loop Used w/LED