The Sport-Comp Playback tachometer allows a driver to review a run of up to 1 minute 20 seconds, with plenty of time for the burnout, stage, and full pass. Replay can be viewed on the tach in 1/3 real time and enhanced using fast forward and fast reverse functions. Data is recorded at 50 samples per second, for clarity. The revolutionary Launch-Lite feature (patent pending) keeps a driver's eyes on the tree using the optional shift light to signal optimum launch rpm. Four shift points can be selected, and any Auto Meter shift light is compatible with the Launch-Lite feature (shift light sold separately).