The Importance of Howler Systems in Fire Safety

Construction and temporary sites present unique fire risks due to ever-changing layouts, mobile equipment, and dispersed work zones. A reliable alarm network is vital for promptly alerting all personnel in case of danger. The Howler range – including the GOLink system, HO alarms, and site alert units – offers a flexible, customisable solution suitable for diverse environments.

What are HO Alarms?

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

• High output: Typically 102 dB at 1 metre.


• Visual indicators: Available units feature a strobe light alongside the audible siren.


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

HO alarms extend main systems, securing areas not reached by the central site alert infrastructure.

The Site-Wide 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 up to 20 others. When triggered, all connected units will sound and flash, ensuring comprehensive coverage.

• Audible warning: Approx. 100 dB at 1 m


• Visual cue: Built-in red LED beacon


• Best used where cable runs are feasible

Wireless Variant

Where wiring here 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 larger or temporary layouts.

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

GOLink Integration

GOLink acts as a wireless hub, howler ho alarms supporting site-wide 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.

Dual Use Functionality

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

Best Practices for Deployment

• Zone planning: Map 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.

FAQs

How many alarms can I link together?

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).

Do HO alarms need a control panel?

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.

Final Thoughts

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