Nc No Door Window Contact Magnetic Reed Switch

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When the magnet together the circuit is conductive light on.

Nc no door window contact magnetic reed switch.

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Nc no door window contact magnetic reed switch alarm 3w 10 20mm 4 3 out of 5 stars 63 8 99 8. When the magnet separate the circuit is not conductive light off great for use in family and factory window door. 4 1 out of 5 stars 42. 10x wired home window door burglar security alarm.

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They are ideal for protecting doors windows and patio doors and any opening device such as a drawer or cupboard for example.

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