PEN MC32 NC Surface Mount Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White 6 Sets

Package Included 6Sets x MC32 Wired Magnetic Reed SwitchMounting screws are includes Function The reed switch is an electrical switch operated by an applied magnetic field Designed for use with alarm systems Great for use in family and factory window door etc Install Distance MC32 Wired reed switch Gap between 2 pieces more than 15mm less than 25mmWhite color make home great and beautiful Antifire ABS material Reed SwitchImportant When the magnet is near it makes connectivity when the magnet is removed connectivity is brokenWired magnetic doorwindows contact can be added to wirelesswired Alarm Systemssome wireless system has wired zones Switch Type NO means normally open when the magnet separate the circuit is conductive light on when the magnet together the circuit is not conductive light off NC means normally closed when the magnet together the circuit is conductive light on when the magnet separate the circuit is not conductive light off.