Radio Burglar Alarm Technology

The Domonial Offers State-of-the-Art Technology

Until now, most major security installers shied away from radio burglar alarms (or wire-free burglar alarms, as they are sometimes called) because they were often unstable.  But recent advances in radio technology means that we can now confidently offer a wireless system that will not fail and does not false alarm.

This is down to our years of experience in designing and installing security systems and because we only use Honeywell Domonial wireless security system products - alarm control panels, alarm sensors and other alarm devices.  Honeywell are renowned as world leaders for security products and their Domonial Wireless Security System is the very best on the market.  We know, because we've tested them all!

...So Why Is The Domonial So Much Better?

There are two major things which set the Honeywell Duplex Alpha Radio protocol apart.

The Domonial communicates over the 868MHz frequency which is reserved purely for the security industry. You will find that many other wire-free alarm systems use the 433Mhz frequency which is shared by plenty of other devices - like car alarms, automatic garage doors or gates and radio hobbyists. Not only is this frequency less secure, it has the potential to overload which is one of the main reasons why other wireless security systems false alarm.

Most importantly, however, the Domonial uses Honeywell's unique, market-leading Duplex Alpha Radio protocol; many other wireless radio alarm systems still use simplex radio communication - a last generation technology. Domonial’s two-way radio communication is key to its stability.

Not only does the Domonial use the 868MHz frequency but recognising that radio signals can be affected by all sorts of abnormalities, the Duplex Alpha Radio protocol also uses six channels within this frequency to send and receive different detection signals, whereas most other radio burglar alarm systems use only one.

Put simply, if only one channel is used and there is interference whilst a signal is being transmitted from a detection device, it is highly probable that the alarm system will not activate. Nor are such radio systems smart enough to recognise that they have missed a communication.

But the Domonial transmitter sends the message via one channel and immediately its integral receiver switches into listen mode. If it doesn't receive an acknowledgement within a specified time, it realises and repeats the whole procedure via another channel until it does. This bi-directional signalling guarantees that the message always gets through.

The Domonial’s state-of-the-art technology means that it can be trusted to deliver a wireless system that is as stable and as secure as any wired system.

The Domonial fully conforms to PD6662:2004, DD243:2004 and EN50131 Grade 2 specifications.

PD6662:2004 is the current British Standard for burglar alarms. It almost completely superseded BS4737 in October 2005.

DD243:2004 is the British Standard for Installation and Configuration of Intruder Alarm Systems Designed to Generate Confirmed Alarm Conditions.

EN50131 is the current European Systems Standard.  The security and insurance industries often use the term 'Risk Assessment' for EN 50131-1 (or the British equivalent PD6662), which lays down a structured Risk Assessment procedure for designers of intruder alarm systems.

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