Measuring range up to 30 PSI (206.9 kPA) Necessary tool for gauge and differential pressure measurement Perfect for applications such as: valves, control sensors a pneumatic control environment, HVAC/R pressure levels and medical pressure systems 11 selectable units of measure: bar, mmHg, ozin2, kgcm2, psi, inH2O, kpa, ftH2O, inHg, cmH2O, mbar Maximum and Minimum value recordings with time stamp help adjust and trouble shoot the pressure systems Data Hold Large backlight LCD Auto power off function Built-in computer USB port for data downloads with optionalPC cable and software Hard Carrying Case