Series 210 positive-displacement flowmeters provide a worst-case accuracy of ±0.5% over 200:1 turndown ratios with a 0.1% repeatability factor. The meters from Max Machinery Inc., Heraldsburg, Calif., handle flow rates from 1 cc/min to 26 gpm, temperatures to 550°F, and pressures to 3,000 psi. They are suitable for hydraulic test-stand applications, as well as a variety of R&D projects.