The INNOVA Pro Digital Timing Light is the professional choice for a high quality timing light that will stand up to the riggers of daily shop use. Made from a heavy-duty, ABS, shock proof housing it has a molded boot for extra protection against the engine fan blades and a backlit screen for easier viewing in hard to see places. The slim, rotating barrel offers better aim at the timing mark. The four function digital readout includes tachometer ranges from 249-9,990 RPM, Advance Degrees (2 and 4 cycle) 0-90 degrees, dwell (2-12 cylinders) from 0-180 degrees and voltage from 10-16 volts DC. Features Patented Skip Circuitry Test up to 9,990 RPM and switches from 2-cycle to 4-cycle. This timing light works with most ignition systems (DIS, conventional, electronic and computer controlled systems - domestic and import). The INNOVA Pro Digital Timing Light includes detachable 6-foot leads with inductive pickup and a plastic storage case.