Understanding 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 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 flexible, customisable approach suitable for varied environments.
Overview of HO Alarms?
HO alarms are self-contained, standalone units intended for mobile spaces such as portable offices or unconnected site areas. No hard-wired connection is required, making installation straightforward.
- Loud warning: Generally 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 primary site alert infrastructure.
The Howler Site Alert Systems
The Howler Site Alert system suits 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 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 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 complete communication and coordination.
GOLink Interface Unit
This module connects Howler alarms to external systems (e.g. CCTV, check here 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 the H05 GOLink, include separate fire and first aid switches. The latter sends a non-intrusive howler site fire alarms 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 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.
Frequently Asked Questions
- 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.
- Does first aid alert trigger full system?
- No. The signal is isolated unless configured otherwise.
Final Thoughts
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.