Perimeter Intrusion Detection Systems

Perimeter Intrusion Detection Systems (PIDS) secures areas from unauthorised access by offering discreet and rapid detection at the first point of entry to a site.

Commonly used in government facilities, prisons, airports, or military bases – they are also increasingly being used to safeguard settings such as education environments or VIP homes.

Why invest in PID system?


  • Discreet - PID systems offer an elite level of security. They are visually discreet and provide early attack warnings without giving the intruder the impression that they have triggered an emergency response.
  • Rapid detection - Time is critical in the instance of an unauthorised access. A PID systems detects even slight movements in activity – whether it’s an individual prodding the fence, testing its resistance, or attempting to scale it. Early detection buys more time to assess the situation and intervene before it escalates.
  • Integrate with other systems - When integrated with CCTV, the activation of the alarm can trigger the response from a local camera to capture live footage for security teams to proactively respond to. This can also be used as evidence in supporting an investigation in court.
  • Compatible with current fencing - The leading PID systems available on today’s market are compatible with all fencing, meaning no additional construction is required. They can be used on virtually all types of fencing including mesh fencing, palisade fencing, paladin fencing and high security mesh fencing as an example.

What other
clients have to
say about us

A Plus provides an excellent return on investment, not just through the solution installed, but the general experience they offer from pre-install to post-install and right through to the maintenance of the system. We knew we had made the right decision with A Plus as they offered a comprehensive and detailed proposal and project plan. The skill level of their engineers was a pleasant surprise with their knowledge of IT and networks, as well as electronic security, which made dealing with our internal IT team very smooth. Apart from that, the fact we never had to chase them for anything was a very nice surprise!

ACS International Schools

We needed to roll out the new system throughout Scotland, London and Europe which was very challenging. A Plus and their advice and flexibility made this process much easier for the whole project team. The one to one dialogue and personal service has been excellent. We can speak to a familiar voice at any time, morning and night which has exceeded our expectations. Since the project roll out was completed, we have been able to centrally control the physical security of the Government’s Estates seamlessly. The process Is now simpler which has led to better productivity.

The Scottish Government