Understanding Howler Systems in Fire Safety
Construction and temporary sites present distinct fire risks due to variable layouts, mobile equipment, and dispersed work zones. A reliable alarm network is essential for promptly alerting all personnel in case of danger. The Howler range – including GOLink, HO alarms, and site alert units – offers a flexible, adaptable solution suitable for varied environments.
Overview of HO Alarms?
HO alarms are battery-operated, standalone units intended for mobile spaces such as site cabins or unconnected site areas. No hard-wired connection is required, making installation simple.
- High output: 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 installation.
HO alarms augment main systems, covering areas not reached by the primary site alert infrastructure.
The Howler Site Alert Systems
The Howler Site Alert system suits smaller and medium-sized sites. Each unit can work independently or be wired together with up to 20 others. When activated, 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 feasible
Wireless Variant
Where wiring is impractical, the Site Alert RF allows up to 30 devices read more 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 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 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.
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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.
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.
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.
- Can GOLink connect to other systems?
- 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.
- 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.
Summary & Next Steps
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.