Simplex 2901-9333 Category : Simplex This bell is compatible with some of Simplex’s strobe plates, such as the Simplex 4904-9139. Brand SimplexModel 2901-9333Manufacturer FaradayType Alarm (Bell)
Simplex 4904-9053 Category : SimplexI accidentally bought this particular unit not realizing I already had one. Oh well, happens.
Grinnell IXA-RMS Category : GrinnellThis unit was taken off of a TFX-400 system at Brigham Young University.
