Simplex 4098-9830 Category : Simplex The LED on this unit uses 14VDC rather than the 24VDC used by the Simplex 2098-9806. Brand SimplexModel 4098-9830Manufacturer SimplexType Indicator
Wheelock 7002T-24 Category : WheelockEach 7002T-24 has a somewhat different pitch, so I’ve kept several that sound different from each other.
EST 882-2B Category : EST/EdwardsThis unit has an electronic horn rather than an electromechanical mechanism.
Grinnell RMS-1T Category : GrinnellI’m almost certain that this unit has an actual “Grinnell” model number, not just the standard RSG one, but it’s...
