The Mac Tools Master Fuel Injection Test Set, No. FIT1200MS, contains everything needed to check the fuel injection systems on most domestic and foreign cars. This Test Set includes all adapters, gauge heads and hose assemblies, including a quick coupling system. It comes with two gauges - one that measures up to 145 psi and another that measures up to 15 psi - complete with rubber gauge protectors. Instructions and a blow molded case with easy identification marks on both the case and parts.