Reaction Time DelayCommand Center Super Delay BoxCommand Center Super Delay Box; 4 Delay Modes Incl. Cross-Talk/Crossover/Interface/Delay; For Use w/12V And 16V Electrical Systems; Illuminated Keypad/Backlit Display;FEATURES:Compatible With 12V And 16V Electrical Systems4 Delay Modes Include Cross Talk/Crossover/Interface And DelaySkip Up And Skip Down Same As Tap Up/Down To Add Or SubtractFrom Your Delay With The Push Of A Separate ButtonAfter You Release The Trans brake ButtonTwo 4 Stage Timers/Adjustable To The ThousandthIdeal For Throttle Stops/Shift By Time/Nitrous Lean Outs/RetardsAdjustable Trans brake Lockout/Crossover CompensationAnNext generation instruments from Auto Meter combine our NASCAR proven racing movements with our award winning LED lighting technology to offer you the ultimate in Accuracy, Durability, Visibility and Styling.