Simplex 4903-9361 S/V 110CD 25/70V Non-addressable White with “FIRE” LetteringSimplex 4903 9361 S V 110CD 25 70V Non addressable White with FIRE Lettering. TrueAlert non addressable speaker visible (S V) notification appliances combine a multi tapped speaker and a high intensity strobe to provide audio tone notification and visible notification from the same appliance. Speakers and strobes are wired separately. The speaker is multi tapped with taps available for either 25 VRMS or 70. 7 VRMS and the strobe is selectable for