Understanding Howler Systems in Fire Safety

Construction and temporary sites face distinct fire risks due to ever-changing layouts, mobile equipment, and dispersed work zones. A reliable alarm network is essential for quickly notifying everyone in case of danger. The Howler range – including GOLink, HO alarms, and site alert units – offers a flexible, customisable solution suitable for diverse environments.

Overview of HO Alarms?

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

• Loud warning: Generally 102 dB at 1 metre.


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


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

HO alarms augment main systems, securing areas not reached by the primary site alert infrastructure.

The Site-Wide Site Alert Systems

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

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• Audible warning: Approx. 100 dB at 1 m


• Visual cue: Built-in red LED beacon


• Best used where cable runs are feasible

Site Alert RF

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

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

Using the GOLink System Effectively

GOLink acts as a wireless hub, supporting complete communication and coordination.

GOLink Interface Unit

This module connects Howler alarms to third-party infrastructure (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, 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 locate alarms 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

Max alarm connections?

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

Wireless range of Site Alert RF?

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

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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.

Purpose of switch covers?

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

Can wired and RF units be used together?

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

First aid switch impact?

No. The signal is isolated unless configured otherwise.

Final Thoughts

Effective fire safety relies on 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, see the Howler section at FireSense.