Understanding Howler Systems in Fire Safety
Construction and short-term sites face distinct fire risks due to variable layouts, mobile equipment, and dispersed work zones. A dependable alarm setup is vital for quickly notifying all personnel in case of danger. The Howler range – including the GOLink system, HO alarms, and site alert units – offers a scalable, adaptable approach suitable for varied 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 simple.
- High output: Typically 102 dB at 1 metre.
- Strobe integration: Available units feature a strobe light alongside the audible siren.
- Durable casing: Many are IP-rated for outdoor or semi-exposed installation.
HO alarms augment main systems, covering 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 independently or be wired together with up to 20 others. When triggered, all connected units 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 to connect wirelessly to a here master unit. With up to 1 km open-air range and multiple frequency channels, this setup is ideal for larger or more info temporary layouts.
Hybrid arrangements 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 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.
First Aid Alert Feature
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.
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.
- 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.
Summary & Next Steps
Effective 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.