Features Single Programmable Digital Shift Point Adjustable By 10 Rpm Increments To Optimize Use Of Your Engines Power Band And Improve Vehicle Run Performance. Commonly Referred To As The Tattle Tale In The Racing World This Function Allows Racers To Gain Quick Insights Between Rounds About Wheel Spin Gearing And Gear Changes.. Compatible with 0.5 - 6 pulse ignition signals (1-12 cylinder engines) with points electronic and most 12V high-performance racing ignitions.. Features single color shift light with adjustable brightness settings for daytime and nighttime driving or changes in visibility conditions. Features Autometers E-Z View Digital Led Display System Which Maximizes Readability And Minimizes Distracting High Speed Digit Changes. 12 and 16 volt compatible compatible with nearly every street car or race car electrical system. Measures 5.1" x 2.1" x 3.1". a.i.m system" allows 30" of angle adjustment and 360" rotation of bracket assembly for incredible mounting versatility.. Triage engine health and setup changes using Peak RPM Memory recall with one touch review.