Simplex 2098-9788 This is like the Simplex 2098-9806, but it doesn’t have a switch. Brand SimplexModel 2098-9788Manufacturer SimplexType Indicator
Federal Signal 950B Category : Federal SignalI’m not sure why there is a transformer on the side of this alarm.
Simplex 4903-9403 Category : SimplexThe strobe on this alarm model isn’t directly connected to the alarm, oddly enough.