Burglar Alarms - the different types available
There is no doubt that Burglar Alarms and systems are a worthwhile investment in the
protection of your home and family. Studies reveal that it is far less
likely that you will become the victim of a burglary at home if you have a
correctly fitted and well maintained burglar alarm.
There are many different types of burglar alarms
available for domestic and business use.
They can be broadly categorised into 2 main groups:-
Bells Only Burglar Alarms
The issue is further complicated as both the above types
can be available as "hard-wired" or "wireless" systems.
With the first group - bells only alarms - when the
alarm is triggered by one of the alarm components, an outside bell or
siren is activated. This will undoubtedly inform the burglar that they
have been detected and may motivate them to leave.
The mere presence of an alarm system may also persuade a
burglar to find an easier target.
However, in these days when many houses have alarms
fitted the general public may choose to ignore the warnings bells. How
many times have you heard a burglar alarm going off and how may times have
you taken any action about it?
- these are connected by telephone to an
Alarm Receiving Centre or ARC. When an activation occurs, the system
automatically rings the ARC and notifies them of the activation. Staff at
the ARC then take the relevant action. See
Benefits of a Monitored Alarms.
Redcare Monitored Alarms
- with these systems the telephone line
is also constantly monitored by BT meaning that if it is cut, the ARC will
be immediately notified and take the appropriate response. BT actually
guarantee that every alarm activation will be notified to the ARC.
Redcare GSM Monitored Alarms
- These take matters a step further
and provide connection to the ARC by the normal telephone line but also
have a backup GSM wireless connection to the ARC which is utilised if the
main telephone line is cut.
Police Response to Burglar alarms.
Many cheaper systems result in numerous false alarms and
the public have to some extent become immune to the sound of a continuous
alarm. Because of the pressures placed on the police force by these
numerous false alarms, the Association of Chief Police Officers (ACPO)
issued a Intruder Alarm Policy. More details can be seen
With an approved monitored alarm system, any alarm
activation is passed to a central monitoring station by your telephone.
These Alarm Receiving Centres, or ARCs, are thus alerted to any potential
burglary. They can "watch" the alarm system and if they see 2 or more
different units activated, they can inform the police that a confirmed
incident is taking place.
The Metropolitan Police Force offer the following
"The variety of alarms and their fitting
is a complex subject. As a starting point the installation should meet
with British Standard 4737. This type of installation refers to
hard-wired systems as opposed to wire-free. Though more expensive than
many wire-free or D-I-Y packages on the market, they are more reliable and
conform to the Association of Chief Police Officers (ACPO) Intruder Alarm
Policy. The only wire free system which conforms both to British
Standards and the ACPO Intruder Alarm Policy is a BS 6799 Class VI alarm.
This type is typically more expensive than its hard-wired counterpart. Be
aware that systems that claim to meet with British Standards, but don't
specify BS 4737 or 6799, may well be referring to the electrical standard
and not that of the alarm system."
If you are thinking about the
installation of an alarm system in your home it is worth taking into
account that the police response to alarm activations varies according to
the type of alarm installed.
In recent years the percentage of false alarm
calls caused by either equipment, communication or user error represented
in excess of 92% of all alarm activations nationally. In order to redress
the balance in favour of genuine calls, the ACPO Unified Intruder Alarm
Policy has been adopted by the Police, in which two types of alarms are
defined, together with the relevant police response.
Type A - Remote Signalling Alarms, including
intruder alarms terminating at approved central monitoring stations.
They must be maintained and used in accordance with British Standard
4737, BS 7042 (high security systems) or BS 6799 Class VI (wire-free
alarms). Such alarms will be registered with the police and identified
by a unique reference number (URN) and can include personal attack
alarms. Some police forces are beginning to charge for both an intruder alarms
and for a separate panic attack system.
The police response to their activation will be based on the
assumption that an offence is taking place, but against the background
of competing urgent calls and available resources. Such a response will
also be conditional upon the number of false activations in any 12 month
period, in which case the activation may receive a lower priority police
Type B - Audible Only and Hybrid Alarms,
including bells-only and automatic dialling alarms, as well as alarms
from non-compliant companies and non-compliant central stations. URNs
will not be issued for these systems. To obtain police attendance, in
addition to their activation Type B alarms will also require some
indication that an offence is in progress, e.g. from a witness.
See full article here
The monitored alarm systems we feature fully comply with
Type A above.