Saves you gas, time, and money by providing fuel and mileage reports--giving you more accurate fuel consumption/conservation data by tapping into your vehicle"s diagnostic system * Simple installation that takes an average of five minutes * Accurate fuel consumption and carbon footprint * Real time engine and emissions data--RPM, coolant temp, air flow, fuel flow, air pressure, and more * Reads Diagnostic Trouble Codes (DTC)--allows you to view over 4000 trouble codes and reset the check engine light