【Compatibility】: Four adapters (M10 x 1.0 mm, M12 x 1.25 mm, M14 x 1.25 mm, M18 x 1.5 mm) can connect almost all motorcycle and car engines. 【Two Test Modes】: 0 - 300 PSI / 0 - 20 Bar, the gauge displays two results together. 【Durability】: Drain valve with copper nickel plating, anti-oxidation and corrosion. And with a rubber protection to prevent scratches. 【Convenient】: Having 2 rubber cones that do not need to be threaded into the head, Can be quickly installed on your engine to get accurate data. 【Portable】: All parts are well stored in the case, easy to store and carry.