Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC with Ad...
$16.99
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NO&NC 3 Wires Magnetic Garage Door Contacts Heavy Duty Alarm Switch Sensor fo...
$27.99
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About this item
3 wires NO&NC, both with normally open and normally closed type for you choosing. Over 40mm large operation distance, suitable for most garage door, roller shutter, gate. L adjustable bracket included, for magnet easy mounting.
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