Understanding Howler Systems in Fire Safety
Construction and short-term sites face unique fire risks due to variable layouts, mobile equipment, and dispersed work zones. A dependable alarm network is essential for quickly notifying all personnel in case of danger. The Howler range – including GOLink, HO alarms, and site alert units – offers a scalable, adaptable approach suitable for varied environments.
Overview of HO Alarms?
HO alarms are battery-operated, standalone units designed for temporary spaces such as portable offices or remote 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 external or semi-exposed installation.
HO alarms extend main systems, covering areas not reached by the primary 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 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 feasible
Site Alert RF
Where wiring is impractical, the Site Alert RF allows up to read more 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 installations using both wired and wireless units are common and offer better coverage.
GOLink Integration
GOLink acts as a radio-linked backbone, supporting site-wide communication and coordination.
System Integration
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 website GOLink network.
Dual Use Functionality
Some models, such as the H05 GOLink, include 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: 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 checks to confirm functionality and battery levels.
- Staff training: Make sure all personnel understand alarm tones, first aid indicators, and emergency response steps.
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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).
- 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 requires 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.