An auto diagnostic apparatus having jawed, needle-toothed clips for connection to variable output wires of engine sensors adjacent to the sensors, and a processor which converts the output voltages to output values in reader friendly units understandable to the auto technician, and which stores and continuously...http://www.google.com/patents/US5278508?utm_source=gb-gplus-sharePatent US5278508 - Diagnostic apparatus displaying engine operating characteristics in the parameters in which the characteristics are measured
