Magnetic Reed Switch MC-31 NC Surface Mount Door Window Alarm, Magneti Door Switch, Contact Sensor, for Home Security and Burglar Alarm Magnetic Reed Switch,Sets of 2

Features

• Package Included: 2Sets x MC-31 Magnetic Reed Switch.(Mounting 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 Gap between 2 pieces more than 15mm, less than 25mm.White color make home great and beautiful. Anti-fire ABS material.
• 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 ).
• Reed SwitchImportant : When the magnet is near it makes connectivity, when the magnet is removed connectivity is broken.Wired magnetic door/windows contact can be added to wireless/wired Alarm Systems.(some wireless system has wired zones),Here with our 90-day money back risk-free purchase guarantee.