Honeywell SC809A1019 Category : Honeywell This type of speaker has been re-branded by many other companies, such as Simplex. Brand HoneywellModel SC809A1019Manufacturer Atlas SoundType Alarm (Speaker)
Simplex 4903-9101 Category : SimplexSince this is a ceiling-mount unit, it’s model number is probably different from 4903-9101, but I couldn’t figure out what...
Simplex 4904-9139 Category : SimplexI believe that this strobe plate was designed to be used with bells, such as the Simplex 2901-9333.
