The INNOVA Timing Lights include a full range of options designed to meet the needs of DIYers with many of the features that professional installers demand. Their wide coverage, proven quality and competitive price make them the tool of choice for use on the vehicles of today and tomorrow. Split-screen digital LCD readout displays Tachometer and Advance functions simultaneously (Digital Tach: 249 to 9,990 RPM; Digital Advance: 0 to 90). Slim, rotating barrel for better aim at timing mark. Detachable leads, metal inductive pickup. Protective Hand Guard. Patented Skip Circuitry Test up to 9,990 RPM. One-hand Operation.