Digital Pressure Gauge, Dial Size (In.) 3, Range 100 PSIA, Connection Size 1/4 In. NPT, Connection Location Lower, Accuracy ( Percent) 0.25, Socket Material Stainless Steel, Case Material Extruded Aluminum Case, Epoxy Powder Coated, ABS and Polycarbonate Bezel, Case Color Grey, Display 4 Digit LCD, Display Units psig, kPa, MPa, mbar, bar, atm, kg/cm2, g/cm2, cmH2O, oz/in2, ftH2O, inH2O, mmHg, torr, InHg, Resolution Range Dependent, Powered By AA Battery