Victorshome Magnetic Reed Switch Nc Surface Mount Wired Door Window Contact Sensor With Cover For Home Security And Burglar Alar Marine Audio Systems Smart Detection Features: Benefit from

Smart Detection Features: Benefit from instant alerts for motion and sound detection

The Pvc Cable Casing And The Waterproof Head Crafted From Tpe Material Contribute To An Extended Lifespan Of Your Cable And Charging Adapter

And Dry Throats

And Will Not Break Like Plastic Products If Used For A Long Time

Victorshome Magnetic Reed Switch Nc Surface Mount Wired Door Window Contact Sensor With Cover For Home Security And Burglar Alar Marine Audio Systems Smart Detection Features: Benefit fromDifferences Of Nc, No, Nc Nonormally Closed(Nc): When The Switch Is Close To The Magnet, The Circuit Is Conductive(Light On); When The Switch Is Separated From The Magnet, The Circuit Is Not Conductive(Light Off). Normally Opened(No): When The Switch Is Separated From The Magnet, The Circuit Is Conductive(Light On); When The Switch Is Close To The Magnet, The Circuit Is Not Conductive(Light Off). Nc No Combined: The Switch Has 3 Contact Types: Nc No