Set includes two gauges for high and low pressure applications as well as all the fitting required to test the many different systems found on modern European and Japanese vehicles. High pressure gauge has a 3.5 and 34 face with dial readings of 0-145psi and 0-1000kpa, whilst the low pressure gauge covers from 0-15psi or 0-100kpa. All adapters feature quick couplings where possible for easy connection to the system under test.tests fuel injection systemsdiagnoses injection faultsfull instructionseasy fits togetherall snaps together on quick release couplings