Accuracy to 0.04% of full scale Absolute pressure measurement ranges 15, 30, 100, 300 psia Reference class gauge accuracies to 0.04% of reading Easy to use, rugged construction for reliable performance Certified intrinsically safe as per CSA Class 1, Div 2, Groups A-D rating and ATEX II 3 G Ex nA IIB T6 rating 5-1/2 digit, 16.5mm (0.65") high display with 20-segment bar graph 0-100% and backlight Displays measured pressure in 18 different engineering units ranging from psi to bar, kPa and many others, allowing you to customize the gauge to measure your individual or localized measurement needs and requirements Precision pressure measurement from "10 inH2O to 10,000 psi (20 to 690 bar)