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)
Amseco BZ-51-PC2 Category : AmsecoI like the grille, or in other words, have nothing special to say about this particular unit.
System Sensor CH24MC Category : System SensorThis alarm just looks like a slightly smaller version of the SpectrAlert Classic speaker/strobe.
