Simplex 4903-9459 Category : Simplex This unit is an addressable horn strobe. It’s what my elementary school had installed in the classrooms. Brand SimplexModel 4903-9459Manufacturer SimplexType Alarm (Horn/Strobe)
Siemens SE-MC-W Category : SiemensA Speaker/Strobe, manufactured by Wheelock and rebranded by Siemens.
Gentex GMS24-15/75WR Category : GentexThe horn mechanism on this alarm is the exact same one as found on the rectangular electro-mechanical Simplex horn/strobes, such...
