Knight Grade 1 5-Terminal Brown Surface Door Window Alarm Contact  £1.66

Enlarge Image
In Stock1
Save 52%
Order in the next 21 Hours and 38 minutes for dispatch tomorrow
Postage to United Kingdom on this item is £3.99
Tracked 24 Hour Delivery Available
  • Description
  • Reviews
  • Q&A

The D20B 5 Term Above Surface Single Reed Magnetic Door Contact from Knight Fire & Security is ideal for placement indoors 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

1 Year Guarantee Included

Similar Products
Knight Grade 1 5 Terminal White Surface Door Window Alarm Contact
Price £1.66
RRP £2.99Save 44%
CQR White 0.182mm 8 Core 4 Pair Round CCA PVC Intruder Burglar Alarm Security Cable
Price £0.58
RRP £0.60Save 3%
ESP Enterview 5 Mono Video Door Entry Security Intercom Camera
Price £40.74
RRP £43.64Save 7%
Our Best Selling Contacts
Loading ...
Also Bought