A Detailed Guide to Commercial Intruder Alarm Installation


A commercial intruder alarm, also known as a business security alarm system, is a specialised security system designed to protect commercial properties, such as offices, retail stores, warehouses, and other business premises, from unauthorised access and intrusions.

It comprises various components, including sensors, detectors, control panels, and alarms (more details at the end), that work together to detect and alert business owners, security personnel, or monitoring services about potential break-ins or security breaches.

Role of Commercial Intruder Alarm?

Commercial intruder alarms are specifically designed to provide enhanced security features. These alarms deter potential intruders, minimise losses and damages by enabling early detection and prompt response, and help ensure the safety of employees and assets within the commercial space.

The sensors and detectors in a commercial intruder alarm system are strategically placed at entry points, windows, and other vulnerable areas to detect unauthorised access, motion, or other suspicious activities.

When an intrusion is detected, the alarm system triggers an audible alarm and/or sends a notification to designated individuals or a monitoring centre, allowing swift action, such as contacting authorities or dispatching security personnel to the premises.

In addition to the basic intrusion detection functionality, Commercial Intruder Alarms can be integrated with other security systems, such as closed-circuit television (CCTV) cameras and access control systems, to provide comprehensive security solutions for businesses.

For your information, this integration allows for better surveillance and identification of potential threats and provides a centralised control system for managing all security components.

Types of Commercial Intruder Alarms

Wired Alarms

Wired alarms, as the name suggests, consist of devices such as door contacts, motion detectors, bells, and keypads connected to a central control panel called an end station using physical cables.

These systems are powered from a single point or, in the case of larger systems, through a few strategically placed power supply units throughout the premises.


  • Wired systems offer stable and reliable performance without interference or signal loss.
  • Less vulnerable to hacking or signal jamming attempts, providing enhanced security.
  • Can easily integrate with other security systems for comprehensive protection.


  • Requires professional installation due to the need for running cables.
  • Difficult to modify or expand once installed.
  • Higher upfront costs due to installation labour and materials.

Wireless Alarms

Instead of wires to communicate as in wired alarms, wireless systems consist of detectors that communicate with the main control panel using radio frequency signals instead of physical cables.

Wireless systems have gained prominence recently and are just as reliable as wired systems. While initially popular in the domestic market, they are increasingly being adopted in commercial installations.


  • Quick and simple installation without the need for cables.
  • Sensors can be easily relocated or added, accommodating changing security needs.
  • Easily expand or modify the system as the business grows or premises change.


  • Potential interference from other devices or obstacles may result in signal loss or false alarms.
  • Wireless sensors require regular battery replacement or recharging.
  • Vulnerable to hacking or signal jamming if not properly secured.

Hybrid Alarms

Hybrid alarms combine both wired and wireless components, offering the benefits of both systems in one spot; they offer flexibility and practicality in system installation.

In a hybrid system, the easier parts of the installation process can be wired, while more challenging areas, such as detectors located in difficult-to-reach places like the top of a warehouse, can be equipped with wireless devices.

Hybrid systems are particularly beneficial when integrating with existing systems. The existing wiring can be utilised for wired devices, while future expansions or additions can be implemented using wireless components.


  • A blend of wired and wireless components for easy installation and expansion.
  • Tailor the system to specific security needs by leveraging wired and wireless advantages.
  • Wired backbone provides stability, minimising signal loss or interference.


  • Installation and configuration may be more complex, requiring professional expertise.
  • A combination of wired and wireless components may result in higher upfront costs.
  • Ongoing maintenance may be required for both wired and wireless components.

Best Practices for Commercial Intruder Alarm Installation

When installing an intruder alarm system, professional installers provide reliable intruder alarm repair services and implement many best practices to ensure stability and property security. The following are a few things that an expert installer will take care of.

Keypad & Control Panel Placement

  • Place the keypad and control panel away from windows and entrances, out of sight from potential intruders.
  • Keep the keypad cover closed when not in use.

Program an Alarm System Duress Code

  • Set up a duress code in case of emergencies or if forced to disarm the system by an intruder.
  • Ensure the duress code alerts the monitoring company or authorities discreetly.
  • Avoid using standard duress codes that can be easily found online.

Place Sensors in the Right Places

  • Install door and window sensors on commonly used and rarely opened entry points.
  • Set window sensors to trigger an alarm when opened more than four inches.
  • Position motion detectors strategically in main entrances, rooms with many windows, garages, and stairs.
  • Equip motion detectors with anti-tamper switches for added security.

Arm Your System at All Times

  • Use both the “Away” and “Stay” modes of your alarm system.
  • Arm the system in “Away” mode when leaving the building for the day.
  • Activate “Stay” mode when you are home to maintain perimeter security while allowing free movement inside.

Have a Backup External Connection

  • Choose a cellular connection for external monitoring to minimise vulnerability.
  • Consider multiple connections, such as landline telephone and cellular, to ensure redundancy in case of communication failure.

Don’t Rely Only on the Alarm

  • Complement your alarm system with other security measures like video surveillance and access control.
  • Train employees and educate residents on security procedures and alarm system usage.
  • Maintain vigilance and prepare for potential security threats.

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