... Pressure Gauge)Application:For measurement of steam, air, oil, water and other pressure media, which have no effect on bronze ... size:1.5", 2", 2.5", 3, 3.5", 4", and 4.5", 6", 8", 10",Pressure range:-30" Hg-0 ... or chrome plated steel Window (lens):Glass, acrylic, and polycarbonate lens availableDial plate:Single and dual scale (psi, kpa, mpa, bar, kg/cm2 ...