Aoje-Link 2Sets RC-32 Magnetic Reed Switch Normally Open Closed NC + NO Door Alarm Window Security, Magnetic Door Switch, Magnetic Contact Switch, ABS RC-32 NC/NO auspowers_batchfive No need to punch a

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Aoje-Link 2Sets RC-32 Magnetic Reed Switch Normally Open Closed NC + NO Door Alarm Window Security, Magnetic Door Switch, Magnetic Contact Switch, ABS RC-32 NC/NO auspowers_batchfive No need to punch aAoje Link 2Sets RC 32 Magnetic Reed Switch Normally Open Closed NC + NO Door Alarm Window Security, Magnetic Door Switch, Magnetic Contact Switch, ABS Magnetic Reed Switch Alarm Surface Mount Wired Contact Sensor Connect to the alarm. 1. Screw Mounted for easily install, Anti fire ABS. 2. Work as an anti theft alarm, ideal for wood door and window. 3. Switch Type: NC NO, NC means Normally Closed: When the magnet together, the circuit is conductive(