The Importance of Howler Systems in Fire Safety
Construction and temporary sites present unique fire risks due to ever-changing layouts, mobile equipment, and dispersed work zones. A reliable alarm network is vital for promptly alerting everyone in case of danger. The Howler range – including the GOLink system, HO alarms, and site alert units – offers a flexible, customisable solution suitable for diverse environments.
What are HO Alarms?
HO alarms are self-contained, standalone units intended for mobile 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: 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, securing 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 activated, every linked alarm will sound and flash, ensuring broad coverage.
- Audible warning: Approx. 100 dB at 1 m
- Visual cue: Built-in red LED beacon
- Best used where cable runs are straightforward
Site Alert RF
Where wiring is unworkable, 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 installations using both wired and wireless units are common and offer better coverage.
GOLink Integration
GOLink acts as a wireless hub, supporting site-wide communication and coordination.
GOLink Interface Unit
This module connects Howler alarms to external systems (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
more info Some models, such as the H05 GOLink, incorporate 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.
- Wireless range of Site Alert RF?
- 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.
- 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, website 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.