Petrol Engine Compression Tester Kit

Designed to test vehicles with M10, M12, M14, M18-thread spark plugs; 

delivered with extensions, thread chasers and service kits 

Easy operation 

Checks valves, piston rings, gaskets and cylinder heads 

For cars, vans and motorcycles 

Pressure relief valve for repeated test of cylinder without removing gauge (dual-scaled; 83mm dia.; 0~300psi/0~20bar)