... effect on bronze and brassType :KP-001 (Dry Steel Case Pressure Gauge)Dial size:1.5", 2", 2.5", 3 ... , 3.5", 4", and 4.5", 6", 8", 10", ... chrome plated steelWindow (lens):Glass, acrylic, and polycarbonate lens availableDial plate:Single and dual scale (psi, kpa, mpa, bar ... , kg/cm2) availableAccuracy:ASME B40.1 Grade B (3-2- ...