EST 757S2-15PS Another duplicate device. Brand EST/EdwardsModel 757S2-15PSManufacturer ESTType Alarm (Speaker/Strobe)
Amseco BZ-54VT+RSD-24L Category : AmsecoThat rubber band is holding the strobe to the unit since there are no screws keeping it secure.
Grinnell TFX-912P Category : GrinnellJust like the rest of my Grinnell equipment, this smoke detector is from Brigham Young University.
