Feature:  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.    Specification:  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 Included:  1 * Compression Tester of 0-21 bar and 0-300 psi;  1 * Hose (length 430 mm); 1 * Adapter M 10 x 1.0; 1 * Pressure Pipe with Rubber Attachment ( straight line); 1 * Adapter M 12 x 1,25; 1 * Pressure Pipe with Rubber Attachment ( Angled ); 1 * Adapter M 14 x 1,25; 1 * Plastic Case (red); 1 * Adapter M 18 x 1,5; 1 * Instruction in English.