Features: 1.This compression tester can be quickly set to your bike / car , then you can get accurate readings in valves , piston rings , cylinder bores or head gaskets . 2.Manometer with double graduation ( 0 to 300 psi , 0- 21 kg / cm 2 ) and with rubber protection to prevent scratches 3.Drain valve with full copper nickel plating, anti -oxidation and corrosion 4.M10 adapter is suitable for motorcycles, M12 M14 M18 adapters are suitable for car. Specifications: Pressure gauge Diameter:75mm Test pressure:max 21 bar / 300 psi 4 Adapters:M10x1.0mm M12x1.25mm M14x1.25mm M18X1.5mm Hose Overall length:430mm Pressure tube length:150mm Angled pressure tube length:160mm Case Size:265 x 210 x 65mm Package Includes: 1xCompressionTester of 0-21 bar and 0-300 psi 1xHose(length 430 mm) 1xAdapter M 10 x 1.0 1xPressurePipe withRubberAttachment ( straight line) 1xAdapter M 12 x 1,25 1xPressurePipe withRubberAttachment ( Angled ) 1xAdapter M 14 x 1,25 1xPlastic Case (red) 1xAdapter M 18 x 1,5 1xInstruction Guide in English