5pcs Recessed Wired Security Window Gate Contact Sensor Alarm,Magnetic Reed Door

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

1-5PCS RC-33 NC/NO Recessed Wired Door Contact Sensor Alarm Magnetic Reed Switch

Wired Door Contact Sensor NC Surface Mount Magnetic Reed Switch Brown 5 Pcs

Wired Door Contact Sensor NC Surface Mount Magnetic Reed Switch Black

360 Degree PIR Motion Sensor - 1200w White Recessed Ceiling Mounted Occupancy

Magnetic Contact Reed Switch Door Window Sensor Entry Security Alarm N/C MC-38

Wired Door Contact Sensor NO NC Surface Mount Magnetic Reed Switch Brown