KnightGrade 1 5-Terminal Brown Surface Door Window Alarm Contact

The D20B 5Term Above Surface Single Reed Magnetic Door Contact from Knight Fire & Securityis ideal for placement indoors and windows in light-risk domestic or commercial areas.

When wired to an alarm system, these contacts will trigger the sounderifthe gap opening exceeds 20mm, and as the contact creates a circuit to your security system, wire tampering ora forced break of the circuit elsewhere will alsosound 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 1Alarm 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: -40C – +50C

1 Year Guarantee Included