... pressure gauge 3.Suitable for American/US valve Precise Double Units Kg/cm2 Psi Rubber Tube Vacuum Pressure Gauge Description: ... needs7.High quality precision machine core,measurement precision,high durability8.Mark KBS LBS two pressure units,suggest reading all kinds of vehicles ... high,pls press down the air valve,make adjustment5.The measurement,twist the copper head,press down the air valve,click ...