Measures the ability of an engine cylinder to hold compressed air using shop air pressure and supplements a compression tester.
Zeros in on the exact problem if there is poor engine performance.
Pinpoints bad valves, worn rings, cracked cylinder walls, and blown head gaskets.
Features a precision regulator with a combination M14 and M18 adapter on 26 hose assembly and has dual easy-to-read gauges which allows the mechanic to monitor input air-line pressure.