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Best Seller | 5pcs MC-51 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White Plastic NC Door Contact Switch The reed switch is an electrical switch operated by an applied magnetic field. Will make Sense Door Closer at Roughly 16mm Screw Surface Mount Work as an anti-theft alarm, perfect for wood door and window. ... more | FREE shipping go to store |
2pcs MC-51 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switch White Plastic NC Door Contact Switch The reed switch is an electrical switch operated by an applied magnetic field. Will make Sense Door Closer at Roughly 16mm Screw Surface Mount Work as an anti-theft alarm, perfect for wood door and window. ... more | FREE shipping go to store |
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