System Sensor PC241575W Category : System Sensor This is a white, ceiling mount SpectrAlert classic. Brand System SensorModel PC241575WManufacturer System SensorType Alarm (Horn/Strobe)
Fire-Lite RZA-4 Category : Fire-LiteThis annunciator is supposed to be used with the old Fire-Lite Miniscan series of panels, I believe.
Federal Signal 450D+VALS Category : Federal SignalThis is just like my other Federal Signal 450D, except it has the VALS strobe attached to it.