Understanding Howler Systems in Fire Safety

Construction and short-term sites face distinct fire risks due to ever-changing layouts, mobile equipment, and dispersed work zones. A dependable alarm setup is vital for quickly notifying everyone in case of danger. The Howler range – including GOLink, HO alarms, and site alert units – offers a scalable, adaptable solution suitable for diverse environments.

What are HO Alarms?

HO alarms are battery-operated, standalone units intended for mobile spaces such as portable offices or unconnected site areas. No hard-wired connection is required, making installation straightforward.

• Loud warning: 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, covering areas not reached by the central site alert infrastructure.

The Site-Wide Site Alert Systems

The Howler Site Alert system suits compact and medium-sized sites. Each unit can work alone or be wired together with up to 20 others. When triggered, every linked alarm 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 straightforward

Wireless Variant

Where wiring get more info 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 deliver better coverage.

GOLink Integration

GOLink acts as a radio-linked backbone, 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, incorporate separate fire and first aid here 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

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.

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.

Does first aid alert trigger full system?

No. The signal is isolated unless configured otherwise.

Final Thoughts

Reliable fire safety requires 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, visit the Howler section at FireSense.