Engine RPM, Jackshaft RPM, and up to two temperatures.
Automatic recording when engine is on. Run is easily highlighted with the analysis software.
RPM and MPH record 10 times per second. Temperatures record 4 times per second. Times displayed to the 100th/ sec.
Full hour of datalogging and detailed playback.
Free P.C. Downloadable software. Features: Custom instrument configuration, charts, graphs and log book. USB and serial computer input.
Automatic power on and off feature.
Backlight for night viewing.
(8) Highly visible red L.E.D. warning/shift lights/brake lights.
Quality lightweight high-impact aluminum casing.
Large, bright, easy-to-read displays.
Lifetime Warranty.
Quickest and most reliable sensors on the market.

Engine RPM (Tachometer) and up to two temperatures.
Large, bright, easy-to-read displays.
Times displayed to the 100th of a second.
USA "Patriotic" cover.
Backlight for night viewing.
(3) Highly visible red L.E.D. warning lights
Free P.C. Downloadable software. Features: Custom instrument configuration, charts, and log book. USB and serial computer input.
Quality lightweight high impact aluminum casing.
Lifetime Warranty.
Quickest and most reliable sensors on the market.

MyChron3 660 was built for one purpose and one purpose only and that is Jr. drag racing. It boasts the best on-screen data review and playback available anywhere. The MyChron3 660 also features the fastest data sampling and the best resolution of any Jr. drag racing data logger available, logging at least twice as much data as any competing product. The included drag racing software has a feature set and pre-defined math channels that are specific to junior racers.The MyChron3 includes every possible sensor, a backlight is standard and a USB download cable and software complete the package.