Simplex 4251-20 Category : Simplex This was the original Simplex Tbar. The Simplex 2099-9754 is the updated version of it. Brand SimplexModel 4251-20Manufacturer SimplexType Pull Station
Amseco FS1-1+SL-02 Category : AmsecoSL-02 is the model of the strobe, FS1-1 is the model of the sounder.