Simplex 2901-9838 I’m not sure why I’ve held on to so many of these horns. Brand SimplexModel 2901-9838Manufacturer FaradayType Alarm (Horn)
Grinnell IXA-RMS Category : GrinnellThis unit was taken off of a TFX-400 system at Brigham Young University.
System Sensor PA400B+PS24LO Category : System SensorThe horn’s model is PA400B, the strobe’s model is PS24LO.