This engine cylinder compression tester kit features a dual mechanical gauge (pressure gauge and 0-100 psi leak-rate gauge), directly calculating the leakage percentage. It includes US/EU/JP/UK multi-standard fittings, suitable for most common automotive engines. | Vevor | | Engine Cylinder Compression Tester Kit,Pressure Gauge Range of 0-100 PSI,Automotive Leak Down Tester Kit with 4 Adapters | Black | Best Buy