Robinair A/C System Performance Calculator provides instant A/C performance tests on a vehicle system and produces figures which guide the technician through step by step diagnosis of the Automobiles Air-Conditioning system. Its small size make it easy to suspend from hood latch or attach to your manifold gauge set. Includes ambient and vent temperature probes for quick readings of single or dual A/C systems as well as ambient temp. The unit displays in Fahrenheit and Celsius scales. Diagnostic flow chart and tech tips to guide you through the test for results like an expert. Features Auto shut-off to preserve battery life.
