Simplex 2099-9754 Category : Simplex This is the updated version of the Simplex 4251-20. I have both the silver and red backed versions. Brand SimplexModel 2099-9754Manufacturer SimplexType Pull Station
Atlas VT-157 Category : Atlas SoundMultiple companies have rebranded this speaker. Atlas Sound is actually the company that manufactures it, however.
Simplex 4904-9103 Category : SimplexThis is the ceiling-mount version of the Simplex 4904-9101 remote strobe.
Simplex 2904-9103 Category : SimplexThis unit is a light, not a strobe. I’m pretty sure that 2904-9103 is the correct model number.
