Understanding Howler Systems in Fire Safety
Construction and temporary sites present unique fire risks due to variable layouts, mobile equipment, and dispersed work zones. A reliable alarm network is vital for promptly alerting all personnel in case of danger. The Howler range – including GOLink, HO alarms, and site alert units – offers a scalable, customisable solution suitable for diverse environments.
Overview of HO Alarms?
HO alarms are battery-operated, standalone units intended for mobile spaces such as portable offices or remote site areas. No hard-wired connection is required, making installation straightforward.
- High output: Generally 102 dB at 1 metre.
- Strobe integration: Optional units feature a strobe light alongside the audible siren.
- Durable casing: Many are IP-rated for external or semi-exposed conditions.
HO alarms extend main systems, covering areas not reached by the central site alert infrastructure.
The Howler 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 a maximum of 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 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 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 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
Some models, such as here 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: 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 mobile 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.
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).
- 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.
- 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
here Reliable fire safety relies on adaptable, clearly communicated alarm strategies. The Howler suite, 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.