Knight Grade 3 Large Surface Magnetic Door Window Contact with Tamper (YEND74)

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Key Features:

  • White
  • Indoor
  • Grade 3

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 YEND74 is a 4 terminal grade 3 surface contact complete with built in selectable EOL resistors.  

The tamper switch on this contact will detect removal of the contact lid, meeting the requirements of Security Grade 3.


  • This is compatible with all mainstream UK control panels and includes both EOL and Alarm by-pass resistor options
  • White
  • Environmental Class 2
  • Operation Gap: 5mm approx make, 12mm approx break
  • Terminals: 4-Terminal Block
  • Tamper: TACT Microswitch
  • Includes Resistors compatible with: Honeywell, Ademco, Scantronic, Menvier, Texecom, Pyronix, Castle, HKC, Aritech, DSC, RISCO (Gardtec), Guardall and Inner Range Control Panels
  • Alarm Values: no res, 1k, 4k7, 5k6, 6k8, 8k2
  • EOL Values: no res, 1kr, 2k2, 4k7, 5k6, 8k2
  • Also includes option for traditional 4 wire non-resistored configuration
  • Grade 3 contact EN50131-2-6: 2008
  • Dimensions: 78mm x 25mm x 20mm
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Manufacturer Code KNI-YEND74