Universal Design: The included adapters, hoses and fittings cover all fuel injection systems and most Gas Engine Cars, Motorcycles, Trucks, SUVs, ATVs, UTVs, RVs. (Does not compatible with Bosch, CIS Jetronic, TB System on GM vehicles) Quick Release Valve Design: Fuel pressure tester with release valve design could offer single-handed operation inflation and deflation, helping to release pressure safely and recovery fuel easily. Ideal For Mechanics：measuring range：0-140psi / 0-10bar,Fuel Injection Pump Pressure / Oil Combustion Spraying Pressure Gauge Teste，Automotive fuel injector tester tests if the fuel supply & injection system work normally, help to judge if there are broken internal components or faulty oil lines. Convenient and Safe Design: Fuel pressure tester with a quick release valve button could offer single-handed operation inflation and deflation. The measurement range is 0-140PSI; 0-20BAR; 0-2000KPA; 0-20KG/CM² Premium Material: Adapters constructed from high-quality brass resist rust and corrosion, rugged and long-lasting. Hoses adopt reinforced rubber, withstand pressure, temperature, and torsion.