A/C System Peformance Calculator

A/C System Peformance Calculator. A/C SYSTEM PERFORMANCE CALCULATOR Instant performance test under any ambient temperature condition Fahrenheit and Celsius scales Includes ambient and vent temperature probes Suspends from hood latch or attaches to your manifold gauge set. Diagnostic flow chart and tech tips to guide you through the test. Auto shut off. JC Whitney 60-day warranty.

$46.99