Gaylord NC-1357A I like this unit so much in part because there’s no branding on the front. Brand Gaylord
Notifier F67ODT Category : NotifierF67ODT likely isn’t the model number of the unit as it was just a random number stamped on the wall...
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...