Vtg RAC 0-300 PSI Engine Compression Tester 2.5” Gauge Automotive Tool KG/CM In good used condition- no marks, tears, stains or other aesthetic or function-related issues, other than a few marks on the back. This is untested, but no reason to believe it doesn’t work. Measures 0-300 PSI, and KG/CM. Gauge intended to find leaky valves, rings and gaskets in a variety of automobiles. True vintage; stored inside our workshop for decades. Item is sold AS-IS, as-shown.