This all-in-one engine cylinder compression tester kit includes a 0-700 psi compression gauge and a 0-100 psi leak-rate gauge, providing a complete solution from compression testing to leakage diagnosis. The kit comes with multiple adapters and fittings, suitable for comprehensive testing of the most common automotive engine designs. | Vevor | | Engine Cylinder Compression Tester Kit, 0-700 PSI Pressure Gauge & 0-100 PSI Leak Gauge, Automotive Leak Down Tester Kit | Black | Best Buy