... pressure gauge1) Case with rolling 2) Dial: 1.5", 2", 2.5", 3", 3.5", 4", 6" 3) Connection size: 1/8"air pressure ... gauge1) Case: steel with bronze plate2) Dial: 1.5", 2", 2.5", 3 ... e) Window: glass, polycarbonate7) Pressure range: vacuum, compound, 0 - 15psi - 10,000psi8) Accuracy: 1.6%-2%, 3%-2%-3% of FSD. Pressure Gauge air pressure gauge