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Wired Door Window Sensor Magnetic Reed Switch NC Recessed for Home Alarm System (Pack of 10)

5.0 (1) Write Review
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$8.10

$ 3 .99 $3.99

In Stock

About this item

  • Widely Used: This normally closed door switch works with access control or burglar alarm system.
  • 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 )
  • Easy to Use: No external power supply is needed, and the GND and N.C ports of wired or alarm control panel are directly connected.
  • Note: This door switch not suitable for iron doors, it will reduce the magnetism of the sensor.
  • Package List: 10 Pair x Door window sensor


Features:
Magnets are usually close to each other, which is normal statement.
Close = short circuit = create a for the current.
The magnets are close together and the switch is off.
And the switch and magnet are separated, and the switch is open.
No external power supply is needed, and the GND and N.C ports of wired or alarm control panel are directly connected.
Not suitable for iron doors, it will reduce the magnetism of the sensor.
Specifications:
Working Distance: 15mm + 5mm
Switching Pressure: 100VDC
Load current: 300 mA
Life: 1 million times
Switch Output: NC (Normally Closed)
Package Weight: 91g/3.2oz
Package List:
10 Pair * Door Window Sensor


Kaboom
Reviewed in the United States on June 14, 2023
Note that these come with round magnets for use with wooden windows. If you have vinyl windows, the magnets are useless. However, if you are just replacing a switch and the existing magnet is okay, they work just fine.