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)
Wheelock 7002T-24 Category : WheelockEach 7002T-24 has a somewhat different pitch, so I’ve kept several that sound different from each other.
Signal Communications SM24D Category : OtherThis remote strobe belongs to the same family of alarms that my Firecom FVA4-RC24D does.
