Pyrotronics HSD-24F Category : Cerberus Pyrotronics This could be considered a somewhat rare alarm. Brand Cerberus PyrotronicsModel HSD-24FManufacturer WheelockType Alarm (Horn/Strobe)
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 477-669 Category : SimplexOddly enough, the model number on this particular smoke doesn’t fit the typical pattern for Simplex devices.
Simplex 2098-9788 Category : SimplexFigures I’d have a few duplicates of this fairly simple light plate.