Maintaining Construction Site Safety with Howler GOLink, HO and Alert Systems


The Importance of Howler Systems in Fire Safety



Construction and short-term sites present unique fire risks due to ever-changing layouts, mobile equipment, and dispersed work zones. A reliable alarm setup is vital for quickly notifying all personnel in case of danger. The Howler range – including GOLink, HO alarms, and site alert units – offers a flexible, customisable solution suitable for varied environments.





What are HO Alarms?



HO alarms are self-contained, standalone units designed for mobile spaces such as portable offices or remote site areas. No hard-wired connection is required, making installation straightforward.



  • High output: Generally 102 dB at 1 metre.

  • Strobe integration: Optional units feature a strobe light alongside the audible siren.

  • Durable casing: Many are IP-rated for outdoor or semi-exposed installation.



HO alarms extend main systems, covering areas not reached by the primary site alert infrastructure.





The Howler Site Alert Systems



The Howler Site Alert system is suited to smaller and medium-sized sites. Each unit can work independently or be wired together with a maximum of 20 others. When activated, all connected units will sound and flash, ensuring broad coverage.



  • Audible warning: Approx. 100 dB at 1 m

  • Visual cue: Built-in red LED beacon

  • Best used where cable runs are straightforward



Wireless Variant



Where wiring is impractical, the Site Alert RF allows up to 30 devices to connect wirelessly to a master unit. With up to 1 km open-air range and multiple frequency channels, this setup is ideal for sprawling or temporary layouts.



Hybrid arrangements using both wired and wireless units are common and offer better coverage.





Using the GOLink System Effectively



GOLink acts as a radio-linked backbone, supporting here complete communication and coordination.



GOLink Interface Unit



This module connects Howler alarms to external systems (e.g. CCTV, access control), allowing signals to cascade when an event occurs. Up to 127 stations can communicate over the GOLink network.



First Aid Alert Feature



Some models, such as the H05 GOLink, include separate fire and first aid switches. The latter sends a non-intrusive assistance signal to a control point without triggering full evacuation unless specified.





Effective Site Planning Tips



  • Zone planning: Divide the site into clear zones (e.g. cabins, workshops) and position units for optimal reach.

  • Wired & wireless balance: Use wired alarms where infrastructure allows; RF units in more temporary areas.

  • Regular testing: Weekly or monthly inspections to confirm functionality and battery levels.

  • Staff training: Make sure all personnel understand alarm tones, first aid indicators, and emergency response steps.





Frequently Asked Questions



Max alarm connections?

Up to 20 wired Site Alert units using 2-core cable.


How far does it reach?

Approx. 1 km in open air (may reduce with obstacles).


Is a panel required?

No. HO alarms operate independently without central panels.


Integration options?

Yes, via the Interface Unit. External systems such as CCTV and turnstiles can be integrated.


What is an alarmed switch cover?

It reduces false alarms by requiring cover removal before pressing. An alert sounds if tampered with.


Hybrid system support?

Yes. Mixed networks are common and synchronised through the GOLink system.


Does first aid alert trigger full system?

No. The signal is isolated unless configured otherwise.





howler golink systems

Summary & Next Steps



Reliable fire safety requires adaptable, clearly communicated alarm strategies. The Howler range, including HO alarms, Site Alerts and GOLink systems, provides dependable protection for sites of all types. For product specifications, planners, or live demonstrations, visit the Howler section at FireSense.


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