Accuracy to ±0.015% of Indicated reading Accuracy ±0.025 and 0.050% is also available Repeateability ±0.005% of indicated reading Available units psi, g/cm2, mbar, bar, kPa, inH2O, cmH2O Special Calibrations/Local Gravity Gas Industry Models Floating Ball Operation Self-Regulating Rugged Ceramic Measuring Ball Overhung Weight Carrier Non-Contaminating Test Fluid Closed Cover Operation Ball Valves for Inlet and Outlet Interchangeable Weights NIST Traceable