Understanding Howler Systems in Fire Safety

Construction and short-term sites face unique fire risks due to variable layouts, mobile equipment, plus dispersed work zones. A dependable alarm setup 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.

What are HO Alarms?

HO alarms are battery-operated, standalone units designed for temporary spaces such as site cabins or remote site areas. No hard-wired connection is required, making installation simple.

• High output: Typically 102 dB at 1 metre.


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


• Weather resistance: Many are IP-rated for external or semi-exposed installation.

HO alarms augment main systems, covering areas not reached by the central site alert infrastructure.

The Site-Wide Site Alert Systems

The Howler Site Alert system is suited to compact and medium-sized sites. Each unit can work alone or be wired together with a maximum of 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 is impractical, the Site Alert RF allows up to 30 devices to connect wirelessly to a master unit. With here up to 1 km open-air range and multiple frequency channels, this setup is ideal for sprawling or temporary layouts.

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

Using the GOLink System Effectively

GOLink acts as a radio-linked backbone, supporting site-wide communication and coordination.

GOLink Interface Unit

This module connects Howler alarms to external systems (e.g. CCTV, access more info 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 mobile 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).

Is a panel required?

No. HO alarms operate independently without central panels.

Can GOLink connect to other systems?

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.

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.

Summary & Next Steps

Reliable fire safety relies on adaptable, clearly communicated alarm strategies. The Howler suite, 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.