Knight Surface Magnetic Door Window Contact - Brown (D20B)

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£1.32 £1.10

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Key Features:

  • Brown
  • Indoor
  • Grade 1

Knight are the market leading UK manufacturer of wired magnetic contacts.  Magnetic Contact Detectors can easily be added to your wired alarm system using as little as 2 core cable.  Ideal for protecting doors, windows, cupboards and drawers. These detectors will activate your alarm system immediately once the contact is separated from the magnet, i.e. when a door is opened.

The D20B is a basic 5 screw surface contact.  Two nickel screws to govern the reed switch and 3 spare brass screws for any custom requirements.


  • Brown
  • Indoor
  • 5 screw terminals
  • Operating gap up to 20mm
  • Grade 1
  • Dimensions: H 67mm x W 14mm x D 12mm
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Manufacturer Code D20B