Fire alarm at SFSU Science Building

[Bellsandwhistles5050]

if that is a 9219, it sounds different than the one at my school, B/C for some reason the pitch is a bit different

[Farenheit4051]

@Bellsandwhistles5050 It's not rare for mechanical horns of the same model number to have different tones or pitches.

BTW- The model number of that fire alarm is not 4903-9219; it's the white equivalent and does use the same horn.