Liquid, Gas or Steam Variable Area Visual Rate Indicator 1\4" to 4" 0 .026 GPH to 880 GPM 0.58 to 1800 SCFM 25:1 Turn Down Accuracy of +\- 2% Pressures up to 4500 psig Temperatures up to 750 F Loop Powered 4-20 mA Output Contact Outputs Plastic or All Metal Versions Mass Flow Systems Water, Oil, Condensate, Glycol, Air, O2, N2, Natural Gas, Steam, etc.