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A bells-only burglar alarm will produce a loud noise to scare off the intruder and make others nearby aware of the break-in.Only people in the vicinity who hear the alarm will be aware of the event, as these types of intruder and burglar alarms do not automatically inform the police or a named person
Audible burglar alarms may be adequate for retail and commercial buildings within densely populated areas. However, if your premises is in a remote location, such as an industrial estate, there may be better solutions than a bells-only alarm.
Monitored burglar alarms offer the highest level of protection from intruders. You should always use a professional to install a monitored burglar alarm, as it should use both a wireless and wired system. Once triggered, the burglar alarm will inform the monitoring station, which can contact the police or the security company hired to monitor the premises.
For a monthly or annual fee, a monitoring company can contact either the police or a named keyholder whenever an alarm is triggered and cannot confirm the owner’s presence.
With over two decades of experience in commercial security systems, Sygma’s team of engineers is fully equipped to design and install professional, reliable intruder and burglar alarm systems tailored to your premises. Contact us today to request a free survey and let our team ensure your business is protected with a compliant, correctly graded alarm installation.
Wireless Alarms
Wireless burglar alarms use radio signals to communicate between sensors and the main control panel. They are generally quicker and easier to install than wired systems, making them ideal for premises where cabling would be disruptive. All components require batteries to function.
Wired Alarms
Wired burglar alarm installations are typically more cost-effective than wireless systems. They do not rely on batteries, significantly reducing the risk of component failure. Installation can take longer where cables need to be concealed, but the result is a robust, dependable system.

When a monitored alarm is triggered, the monitoring centre must confirm the alert before contacting the emergency services. Confirmation can be established in the following ways:
Intruder alarm systems can also be integrated with your CCTV system for remote surveillance and linked to an Alarm Receiving Centre (ARC) for a fully joined-up security management solution.

There are two main types of intruder alarms, audible only and remotely monitored. Both act as a visual deterrent, but the response they generate once activated differs significantly.
Remotely Monitored Alarms (Type A)
Remotely monitored alarms are connected via the internet to a professional monitoring station. Upon activation, the security team will:
Contact the police if criminal activity has been visually verified
Contact a nominated keyholder
Contact a pre-arranged keyholder service
To qualify for a police response, remotely monitored alarms must be installed in accordance with industry standards (NSI/SSAIB) and maintained in compliance with BS 4737, BS 7042 or BS 6799 Class VI. Compliant systems are registered with the police and issued a Police Unique Reference Number (URN). The police are notified once the alarm has been confirmed by an Alarm Receiving Centre (ARC).
All new intruder alarm systems installed in England, Wales and Northern Ireland must include confirmed signalling technology. In Scotland this is recommended but not mandatory.
Bells-Only Audible Alarms (Type B)
Bells-only and hybrid alarms, including those from non-compliant companies or monitoring stations, will not be issued a URN. Police will only attend if a keyholder has directly witnessed an offence.
Keyholding Requirements — Police policy requires that you provide two keyholders who are trained to operate your alarm, are telephone subscribers, can attend the premises at any time, have full access to the building and can arrive within 20 minutes.
Reach out to Sygma today and let our experts handle all your commercial Intruder Alarm needs.
Sygma - London Office
54 Poland St
London
W1F 7NJ
Sygma - Kent Office
Unit 4A Geerings Business Centre
Kent
TN23 1EP
Sygma - Suffolk Office
Unit K, Blois Meadow Business Centre
Suffolk
CB9 7BN
Frequently Asked Questions About Commercial Intruder Alarms
Reach out to our Intruder Alarm Installation team today.


