Facts Machine Computer Dyno w/ Windows and DOS Program IncludedHave you ever been to a big race and wondered why the team drivers motors look so fast? Well, one reason is because most motor tuners use dynos to tune their teams motors. It just so happens that Fantom offers the most advanced R/C electric motor dyno available in the world... period. Yes, Fantom makes available to YOU the same technology available at your fingertips as the professionals use. Fantom™, in combination with decCo SoftWare and input from our customers, has been tweaking and updating the dyno for over 11 years now, to give you the Ultimate Motor Tuning Tool. No other dyno comes close to offering the features, accuracy, price, dependability, and continued research & development that the Fantom Facts Machine™ Dyno and Facts Machine II™ software does. The bottom line…if you own a Facts Machine™, throw away the excuses!