Wired Door Contact Sensor NC Surface Mount Magnetic Reed Switch Black 3 Pcs

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

3pcs Wired Door Contact Sensor NO NC Surface Mount Magnetic Reed Switch Black

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

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

Wired Door Contact Sensor NO Surface Mount Magnetic Reed Switch Black

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

4-Pack Brown Wired Magnetic Reed Switch - NC Surface-Mounted Door & Window Se...