DynPro works equally well with waterbrake style dynamometers, eddy current dynamometers, DC dynamometers and AC dynamometers. DynPro gives the operator complete control of the engine dynamometer or chassis dynamometer functions and provides for comprehensive data acquisition of the test results. DynPro controls and acquires the data from the many accessories that compliment Taylor's DynPro system including the Smoke Opacity Meter, the Emissions Gas Analyzer, the Engine Instrumentation Unit (for pressure and temperature channels), the Heavy Duty Electronic Interface (for ECM channels) and the Fuel Measurement Unit.