The IQ3 Stock/Super Stock Farm Puller system will monitor Engine RPM, Battery Volts, 2-G-Meters (Lat & Long), GPS Speed, Driveshaft RPM (could be used for Engine RPM on Diesels), 2 Rear Wheel RPM, Turbo Speed, and Boost Pressure 0-150psi. Default Engine RPM input designed for battery ignition, special adapters/sensors may be required for Diesel