I was walking on my way to work and I saw a day care conducting a fire drill.
So I saw the speaker strobes but it sounded like a 4903 horn! Sure enough when I went up to the unit after they were done it had a horn inside it! I unfortunately didn’t have my camera with me so no pictures. But is this possible to have a electro horn behind a speaker strobe body?
You sure it wasn’t a tone designed to simulate an electromechanical horn for easy recognition?
What kind of alarms were they?
This. It sounded like the 4093 Electro-mechnical Horn
Now that’s interesting. If you can go back and take pictures, please do.
those are speaker strobe or speaker only remote speaker fire alarms or general alert alarms by simplex, edwards, space age, gentex, faraday, siemens, wheelock, amseco, mircom, ademco, standard fire alarm, honeywell, notifier, gamewell, potter signal you name it. which they have either various tones from scratch or made from the voice evac message fire panel too. including voice evac messages in english spanish german french japanese etc no matter if it is coded or program how they are or installed or in effect for the nation regulations.
Another possibility is that someone removed the speaker, and put a horn in its place, since Simplex doesn’t have a 4903 horn tone iirc. Cool, but probably not AHJ approved. It wouldn’t make sense to have a different tone broadcasted over a single speaker