Pressure Tester Gauge Kit Digital Fuel Pressure Gauge: Accurate and clear data is easier to read on the backlight display. The buttons could adjusted to 4 different kinds of numerical units in PSI, KPA, BAR, KG/CM² for use. Quick Pressure Release Valve: Digital fuel pressure tester is equipped with pressure release valve with transparent hose for safer pressure discharge and fuel recovery. Accurate & Fast Connection: The coupler at the end of the gauge hose can be quickly connected with most adapters, saving time and improving efficiency. Precise Measurement: Digital fuel injection pressure tester gauge has 0.5 display resolution instead of normal 5PSI display resolution compression tester. The measurement range is 0-300PSI; 0-20BAR; 0-2000KPA; 0-20KG/CM² Scope of Application: Fuel pressure tester kit includes adapters, hoses and fittings compatible with all fuel injection systems and most cars and trucks world wide!