Anatomy of a Home Intruder Alarm System

If you're considering installing an intruder alarm system at home, you may be wondering what will be involved, how many pieces of equipment are going to arrive, how intrusive they might be, and whether they will be difficult to learn to use. Let's take a look at a typical burglar alarm system and find out a little more.


This is a typical control panel. The photograph shows the cover open so that you can see all the handy tips displayed on the underside of the drop-down cover.


With its two-way wireless technology, this system provides a highly secure but flexible security system. You can set or unset the system with the wireless keyfob easily and the systems shows you, visually, that it has been set or unset, and will also indicate any faults. The keyfob allows you to control wired automation outputs too.

Being wireless, you might be concerned that the system could be accidentally or maliciously overridden? This system has advanced jamming detection with frequency hopping technology to counteract such concerns. 128 bit wireless protocol encryption ensures effective anti-code grabbing and multiple attempts at message delivery. This gives a very high level of protection over the wireless bus, ensuring you have peace of mind that your system is safe and secure.


Discreet sensors are mounted in each of the main points of access to your home and come in two varieties - the ordinary sensor and the pet-friendly sensor. If you have several pets, it's not necessary to fit pet-friendly sensors throughout the home, just in the areas where they are likely to trip the alarm accidentally chasing around whilst you're out. Pet-friendly sensors detect movement differently from the ordinary ones, relying on mass detection rather than just movement. This doesn't mean that a burglar can get away with crawling across the floor at a low level to avoid the sensor - have no fear, they would be detected! but it does mean that your cats or dogs, or both, can move around freely without accidentally setting off the alarm and they don't need to be confined to one room of the house. The sensors are wireless so there is very little disruption to the running of your home when your system is fitted.

Pet Friendly Sensor Horizontal Coverage DiagramPet Detector Vertical Coverage Diagram

Great diagrams to illustrate what the pet sensors cover in terms of distance and height. Ask for further details from your engineer if you have any questions.


These unobtrusive fittings are attached to the door to detect unauthorised access and a second set of these can be added to your system if you have more than two doors through which to enter your property. They have 'one push to learn' buttons and are simply and quick to install.

alarm exterior bell box

Finally, the all-important exterior deterrent - the bell box!

As it's also wireless the bell can be easily fitted to the outside of your home with no need to run wires to the control panel minimising mess and disruption in your home. Contains piezo sounder technology. For those who are interested to see 'inside', here's what's under the cover:

Wireless Deltabell Module

Hopefully this article has answered a few questions you may have but we're fully prepared to answer more. Contact us now to arrange your survey. Our special offer price is just £99 +VAT; terms and conditions apply.

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