At last. A practical handbook on how to choose & operate datalogging equipment & get the full benefit from what it tells you. Aimed at the amateur competitor it covers hardware & software & takes over where the manufacturers instructions run out. It shows how to understand what the data is telling you & how to use it to go faster. It covers standard information screens & shows you how to create your own charts & tables that will illuminate the performance of both the car the driver & the team. On the way it deals with systems management issues how to get the quick & easy payoffs & how to benefit in the long term. It explains how sensors work how to fit them so they survive & to calibrate them. The final chapter is a Field Guide designed to help you run the system trouble-shoot hardware & software problems & quickly interpret the output of the graphs under pressure during an event.