TL;DR
A horn strobe is a fire-alarm notification appliance combining an audible horn with a synchronized xenon or LED flash, mounted on walls or ceilings to alert both hearing and sight as NFPA 72 requires for ADA-covered occupancies. Candela ratings from 15 to 185 match the strobe to room size, and all strobes within view must flash in sync to avoid triggering photosensitive seizures.
What it means
A horn strobe is a fire-alarm notification appliance combining an audible horn with a synchronized xenon or LED flash, mounted on walls or ceilings to alert both hearing and sight as NFPA 72 requires for ADA-covered occupancies. Candela ratings from 15 to 185 match the strobe to room size, and all strobes within view must flash in sync to avoid triggering photosensitive seizures. In commercial systems the panel supervises the appliance circuit, so a disconnected device reports as a trouble condition.
Where it sits in the glossary
Horn strobe is part of the Certifications group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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