Feature: 1. Quickly diagnose the internal problems of the engine, such as judging the wear of the piston ring and cylinder wall, the damage of the sealing ring, and the leakage of the valve and gasket. 2. 2‑1/2in dual dial with protective cover, can read the pressure intuitively and compare the table to determine the air leakage rate. 3. The test range is 0‑100psi/0‑700kpa, with a pressure adjustment knob, which can adjust the required pressure source. 4. Equipped with 24in 14mm adapter hose and 10mm, 12mm, 18mm 3pcs adapters, suitable for all gasoline engines. 5. Using high-strength anti-aging materials, the pressure exceeds 10% of the range, it is not easy to be damaged, the needle is wear-resistant, and it comes with a tool box for easy carrying. Specification: Item Type: Cylinder Leakage Tester Material: Copper + Stainless Steel + Plastic How to Use: 1. Correctly connect the leaks detector to the motorcycle cylinder 2. Start the motorcycle, adjust the pressure valve and observe the displayed values of the left and right instruments for comparison, so as to know the working efficiency of the cylinder Dual 2-1/2in gauges feature chrome bezel and rugged protective outer boot Scales read 0-100 psi and 0-700 kPa Pressure regulated manifold includes quick couplers Long flexible 24in 14mm/0.55in hose 10mm/0.4in, 12mm/0.5in and 18mm/0.7in thread adapters. Package List: 1 x Cylinder Leakage Detector1 x Working Connection Hose3 x Adapter1 x Manual 1 x Portable Tool Box