Federal Signal JetSonic Lightbar - Built In Siren Unit / P.C. Control Assembly
Used,Tested, Working.
Fits JetSonic Models : JS1, JS2, JS3, JS4, JS8, JC1, JC2
Includes: Amplifier Chassis, 100 Watt Transformer, Fuses, Transistors, Siren Module P.C. Board, Interface P.C. Board.