This compression tester measures cylinder compression to accurately diagnose engine leaks from rings, burnt valves and blown head gasket. This tester has a quick disconnect coupler that separates the hose from the gauge for faster, easier connections to the engine. Also included are a push-button side release valve that allows repeated testing without disconnecting. It is compatible with all standard spark plug threads. It includes a comprehensive user manual with illustrated step-by-step automotive test procedures.
Includes adapters for 10mm, 12mm, 14mm, 14mm long reach, and 18mm standard spark plug threads
Storage pouch keeps parts organized and repair kit includes valves and rubber O-rings
Bourdon tube provides accurate readings and has 2-1/2 professional gauge
Heavy-duty rubber boot protects gauge