Grade 1 2 Terminal White Surface Door Window Alarm Contact



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The D10 2 Term Above Surface Single Reed Magnetic Door Contact from Knight Fire & Security is ideal for placement in doors and windows in light-risk domestic or commercial areas.

When wired to an alarm system, these contacts will trigger the sounder if the gap opening exceeds 20mm, and as the contact creates a circuit to your security system, wire tampering or a forced break of the circuit elsewhere will also sound the alarm.

What is meant by the term Grade 1?
Grade 1 refers to the grade of intruder alarm system you have on the premises, especially if you are depending on the alarm system for insurance cover in your home or business. A Grade 1 Alarm basically means Low Risk, Intruders are expected to have little knowledge of the alarm system and may be restricted to a limited range of easily available tools.  

The contacts are suitable for recessing or mounting on the inside frame of your chosen door or window and are paintable for a discreet fit.

Main Features:

  • Single Reed Switch Door & Window Contact
  • Grade 1 Alarm Trigger
  • 15mm Operating Threshold
  • High Impact Polystyrene Construction

Technical Specification:

  • Operating Gap: 20mm (Approx)
  • Materials: High Impact Polystyrene
  • Magnet: Ferrite or Alnico V
  • Contact Material: Rhodium
  • Voltage Range: 1 - 100v DC, 125v AC Max
  • Switching Current: 500mA Max DC, 500mA Max AC
  • Temperature Range: -40°C - +50°C

Installation of this product may require Alarm Cable

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