Whelen 6 light dominator plus RED BLUE

Used condition tested and fully working
Red blue alternating with built in flasher. Includes sync and pattern change wire.
Part #01-0686208-02A
Model #Dp633000
Mfg date #unknown 
Will receive pictured unit. Has cosmetic wear including scratches scuffs light lense yellowing small cracks etc. ALL LEDS TESTED AND WORKING