MC-38 WIRED DOOR WINDOW SENSOR MAGNETIC SWITCH

MC-38 Wired Door Window Sensor Magnetic Switch Home Alarm System Detector
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nFeatures :
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nAppearance of small, easy to install.
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nLong period of use, 100% no false positives, not false negatives.
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nMing-mounted for installation windows, wooden doors, stainless steel doors, aluminum doors and so many uses.
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nSwitch output: NC (normally closed with a magnet and a signal line portion is closed together, separate is a signal off).
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nSpecification :
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nMaterial : plastic
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nSize : 30 x15mm
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nLine: 28cm
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nOpen distance : 15mm
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nPackage includes :
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n1 x Wired Door Window Sensor Magnetic Switch