Knight Large Surface Magnetic Door Window Contact with Tamper (D70)

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Key Features:

  • White
  • Indoor
  • Grade 2

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 D70 is a 6 screw large surface contact complete with a leaf tamper switch.  Of the included 6 wiring screws, 2 are used for the reed, 2 for the leaf tamper and the final 2 are left spare for any additional wiring.

The tamper switch on this contact will detect removal of the contact lid, meeting the requirements of Security Grade 2.


  • White
  • Indoor
  • Built in tamper
  • 6 screw terminals
  • Operating gap up to 40mm
  • Grade 2
  • Dimensions: Contact: H 86mm x W 25mm x D 20mm
  • Dimensions: Magnet: H 86mm x W 19mm x D 24mm
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Manufacturer Code D70