Knight Grade 1 2 Terminal White Surface Door Window Alarm Contact  £2.59

Knight D10 Grade 1 Single Reed 2 Terminal 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 mean't by the tearm '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 resticted to a limited range of easily available tools. 

The contacts are suitable for reccessing 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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