How Does An Intruder Alarm System Work?

01

DETECTION

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When the intruder alarm system is armed, movement or intrusion is initally detected via sensors. Sensors include:
Passive infrared (PIRs) which detect changes in heat
Door contacts, which trigger if the contact is broken (ie the door is opened)
Pressure sensors create an alert if someone steps on the plate.
Glass break detectors trigger if a window or glass door is broken.
Dual motion detectors and more.
The alert is then sent to the intruder alarm control panel via alarm cable or via the network.

02

CONTROL

The intruder alarm panel controls the arming and disarming of the alarm system.
It can be armed through using fobs, pin codes, or a biometric reader. Sensors are connected to circuits in the intruder alarm panel via alarm cable or wireless communication and the triggering of these sensors will prompt a pre-programmed response. The intruder alarm control panel is tamper proof and installed with dual path signalling if required.

03

RESPONSE

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The most basic response to a triggered intruder alarm is a loud internal and external sounder also known as a bell box.
The tamper proof alarm control panel can also be preset to alert the keyholder and/ or an ARC (Alarm Receiving Centre) where trained operators will then take action; either to alert the authorities, the keyholder, or a guarding company.
We work with industry leaders Smart Monitoring and QVIS for our intruder alarm monitoring.

04

INTEGRATION

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Couple your intruder alarm with CCTV for quick verification that an alert is a genuine intrusion. Cutting edge TIOC cameras can give you an early warning that an intruder has broached your site’s perimeter and advanced AI means false alarms have been slashed.

Biometric access control readers can be used to set/ unset the alarm and ensure you know exactly who disarmed the system and when.

Why Almas? The Right Security Solution, For Your Business

Almas are expert in security for commercial sites; we’ve protected sites from 5 to 50,000 employees. We will deliver a reliable, effective intruder alarm that can be integrated into your wider security solution to protect your business, site and people. We can advise you of your responsibilities under GDPR. We offer a range of payment options, including no upfront cost and full maintenance.

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If you would like an intruder alarm quote, or to arrange a free site survey with one of our security consultants…

 

You can call us on 0333 567 77 99 (UK) or 01 68 333 68 (IRE), or complete your details and we will get in touch with you

    FAQs

    Got a few more questions?

    We’re here to help.. read on..

    No, you cannot move freely around a building when the system is activated because it will set off the alarm!  As part of the alert verification procedure, the monitoring centre immediately checks the intruder alarm activation.
    However, we can set up different alarms zones. You can then set some or all of the zones. You can also set different permissions for users. For example. The floor manager could be the last person out and activate the stock and production area alarm, whereas the admin manager sets the office alarm zone.

    An intruder alarm system is made up of the following components: a central control unit that controls and communicates with the whole system, and sensors that detect intrusion and trigger the alert to the control centre or keyholder as soon as anyone tries to break in. Which sensors you need will be determined on how many and what type of entrances and exits you have, sensors can include door contacts, break glass sensors, PIRs, pressure and beam detectors. Your alarm site survey will confirm what you need and where.
    You’ll also want sounders, also known as a bell box, which will emit a loud siren upon intruder alarm activation. This is designed to scare the intruder away!

    Sensors should not point towards moving objects or sources of heat in the building. Don’t set your robot vacuum cleaner going and then set the intruder alarm! Pet immune detectors are now common in modern intruder alarm systems. 

    Too many false alarms and the police or garda may refuse to attend site, it’s important that your intruder alarm system is professionally configured by security experts who know how to avoid false alarms.

    A basic intruder alarm system, with a control hub, a few sensors and self-monitoring will be relatively inexpensive. Wireless alarm systems are easy to install and maintain. A more complex set up, with different zones, users and monitoring should be specified and installed by professionals. You don’t want to leave your business vulnerable and invalidate your insurance because everyone has stopped setting the intruder alarm because of frequent alerts..

    Your insurance company may stipulate that you need a certain ‘Grade’ of intruder alarm. This system is governed by the EN50131 European standards (published in the UK as BS EN50131.
    Simply the required Grading of your intruder alarm system will increase with the likelihood that you will be burgled!
    Grade 1 – There is a low risk of burglars targeting your premises.
    Grade 2 – The risk of theft is slightly higher, this may be due to valuable stock or machinery being kept at your business premises.
    Grade 3 – Your business is at substantial risk, from experienced intruders, due to high value materials, machinery or stock being held on your site.
    Grade 4 – There is a very high risk of being targeted by organised criminals, for example a jewellers.

    The grading will determine what type of signalling you need. Your alarm installer will then be able to advise on a site by site basis on the components and sensors you will need to create an effective intruder alarm system.

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