Longacre® 52-44390 AccuTech® DLi Data Log Tachometer

It records the RPM 10 times/second, all the way around the track Allows you to see all the highs, the lows, and everything in between for multiple laps The stepper motor design gives you precision accuracy and reliable performance week after week Numbers are LED back lighted and the pointer is illuminated System will work on most non-magneto ignition systems with 4, 6, or 8 cylinders