Sprinkler Horn Sign

Sprinkler Horn Sign – IMO A.654(16) Fire Control Symbol FS0262

This Sprinkler Horn sign identifies the location of a fixed alarm horn dedicated to the vessel’s automatic sprinkler system, used to sound a distinct warning the moment the sprinkler system activates. The pictogram shows the standardised red horn symbol with “S” designator, matching exactly what appears on the vessel’s fire control plan for this location. As SKU FS0262 in the Fire Fighting Signs range, it is designed for permanent fixing beside sprinkler horn units in accommodation spaces, machinery rooms and other areas covered by fixed sprinkler protection.

A sprinkler horn gives crew immediate audible confirmation that the sprinkler system has activated in a specific zone, which makes fast, confident location of every sprinkler horn critical during a genuine incident or system test. Clear signage also supports routine fire equipment rounds, where crew confirm every sprinkler horn remains accessible, undamaged and correctly wired into the vessel’s sprinkler alarm circuit. The photoluminescent background of this sign keeps the horn unit identifiable during a blackout, exactly when confirming sprinkler activation may guide the crew’s firefighting response.

Why Sprinkler Horn Identification Matters

Crew responding to a sprinkler activation alarm need to distinguish it from the vessel’s general fire alarm and locate the correct horn without delay, since knowing which zone triggered the sprinkler system speeds up the response to the actual fire location. Correctly signed sprinkler horns also support fire drills and equipment familiarisation, helping new crew learn the layout of the sprinkler alarm system across accommodation blocks and machinery spaces. This distinction matters particularly on passenger vessels, where distinguishing a sprinkler alarm from other alarm types quickly can change how crew respond.

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 sprinkler alarm horns. SOLAS Chapter II-2 sets requirements for fixed fire-extinguishing systems including the alarm devices that confirm sprinkler activation, 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 FS0262 keeps your sprinkler system signage matched to the fire control plan surveyors will reference.

Installation Recommendations

Fix this sign directly above or beside the sprinkler horn unit, using the pre-drilled fixing holes for a permanent mechanical fixing or the self-adhesive backing on smooth painted surfaces. In machinery spaces 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 sprinkler horn pictogram with “S” designator
• 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 FS0262 Sprinkler Horn sign to keep every sprinkler alarm 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.