Simplex 4904-9139 Category : Simplex I believe that this strobe plate was designed to be used with bells, such as the Simplex 2901-9333. Brand SimplexModel 4904-9139Manufacturer SimplexType Alarm (Strobe Plate)
Simplex 4099-9003 Category : SimplexI bought this NIB pull specifically for use with my Simplex 4010.
Pyrotronics ES0-24S Category : Cerberus Pyrotronics, PyrotronicsThis is a rebranded Wheelock horn/strobe, and a pretty rare one at that since it has an electronic horn mechanism...
