Horn Fire Alarm Sign

Horn Fire Alarm Sign – IMO A.654(16) Fire Control Symbol FS0247

This Horn Fire Alarm sign identifies the location of a fixed electric horn or klaxon forming part of the vessel’s fire detection and alarm system, used to sound a loud, distinctive warning throughout a space when fire or smoke is detected. The pictogram shows the standardised red horn speaker symbol, matching exactly what appears on the vessel’s fire control plan for this location. As SKU FS0247 in the Fire Fighting Signs range, it is designed for permanent fixing beside horn fire alarm units in accommodation spaces, machinery rooms, corridors and other areas requiring audible fire warning coverage.

A horn fire alarm gives crew and passengers immediate audible warning of a fire, cutting through ambient machinery noise or sleep to trigger an evacuation or emergency response without delay, which makes fast, confident location of every alarm horn critical during a genuine incident or system test. Clear signage also supports routine fire equipment rounds, where crew confirm every horn remains accessible, undamaged and correctly wired into the vessel’s fire alarm system. The photoluminescent background of this sign keeps the alarm unit identifiable during a blackout, exactly when audible warning may be the only alert available to those on board.

Why Horn Fire Alarm Identification Matters

Crew responding to a fault or testing the fire alarm system need to reach the correct horn unit without delay, since a fault at one location can leave a compartment without audible warning during a genuine fire. Correctly signed alarm horns also support fire drills and equipment familiarisation, helping new crew learn the layout of the audible warning system across accommodation blocks, machinery spaces and public areas. This distinction matters particularly on passenger vessels, where audible alarm coverage throughout occupied spaces is a critical part of the approved fire safety design.

Compliance and Certification

This sign reproduces the fire control symbol set derived from IMO Resolution A.654(16) and continued under the current ISO 17631 standard for fire control plan graphics, matching what flag-state surveyors and classification societies expect to see identifying fire alarm horns. SOLAS Chapter II-2 sets requirements for fire detection and alarm systems including audible warning devices covering accommodation and machinery spaces, and correctly labelled equipment is part of demonstrating that this system is genuinely in place during Port State Control inspections and class surveys. Fitting SKU FS0247 keeps your fire alarm signage matched to the fire control plan surveyors will reference.

Installation Recommendations

Fix this sign directly above or beside the horn fire alarm unit, using the pre-drilled fixing holes for a permanent mechanical fixing or the self-adhesive backing on smooth painted surfaces. In machinery spaces and corridors exposed to vibration, heat and oily residue, a screw or rivet fixing will outperform adhesive over the vessel’s operating life, and the sign should remain visible even when other equipment is temporarily stowed nearby. Check the sign periodically during routine fire equipment rounds to confirm it remains legible and the horn beneath it is unobstructed.

• Standard IMO/ISO 17631 fire control symbol – red horn fire alarm pictogram
• Photoluminescent base for visibility during blackout or power failure
• 150x150mm rigid or self-adhesive format to suit steel, aluminium or GRP surfaces
• UV-stable, corrosion-resistant construction for machinery space and accommodation use
• Matches fire control plan symbols exactly for fast, confident equipment identification

Order the FS0247 Horn Fire Alarm sign to keep every audible warning point on your vessel clearly identified before your next drill or inspection. Safety Sign Hub stocks the complete IMO fire control symbol range and ships marine-grade signage across Australia and to vessels in port.

Browse the full Fire Fighting Signs range for every fire control plan symbol your vessel needs, or see our Hazard Signs for ISO 7010 warning pictograms to complete your safety signage programme.