An intruder alarm system monitors and detects unauthorised entry to properties – homes and businesses alike - and alert the property owner or authorised third parties to an intrusion. For electrical installers, the ability to offer customers the opportunity to have a protection system installed in their properties at the same time that ther electrical work is carried out, can generate a lucrative additional revenue stream.

The intruder system comprises detectors, control panels and communications devices.Detectors identify and react to specific occurrences including movement, shock,vibration, smoke, heat, and flood.