Tellegloww 10 Sets NC Wired Surface Mounted Alarm Magnetic Door Contact Sensor Door Window Reed Switch Sensor with Double Side Tape for Security

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About This Material Quality: crafted from plastic, the surface mounted magnetic door switch is a reliable asset choice for your home security, which ensures longer service life wit h its sturdiness and resistance Easy Installation: these surface mounted magnetic contacts come with adhesive tape (no electric wires provided), have no complicated instructions or professional assistance required and can be installed conveniently ( Working current under 12V. ) Extensive Package Content: the package includes 10 sets of window door sensors along with 40 screws supporting the needs of homes, offices, dormitories and even larger establishments such as hotels Multipurpose Usage: these surface mounted magnet alarms are suitable for a diverse range of utilities, such as doors or windows made of various materials like wood, glass, or plastic in homes, offices, or shops Operation Principle: NC means normally closed; If the magnet is closed to this switch, the signal is conductive, otherwise, if the magnet is far away from this switch, the signal is disconnected; This working principle is ideal for alarms, LED, door openers, and more Overview Color : White Brand : Tellegloww Product Dimensions : 1.97"L x 0.39"W x 0.31"H Control Method : Push Button Mounting Type : Surface Mount Show more