Magnetrol introduces the Polaris electromagnetic flow meter, which is capable of measuring liquids with a conductivity as low as 5 μS/cm in closed pipes. It is an accurate and repeatable flow meter that is suitable for a variety of water based and sludge flow applications. The transmitter is back lit and rotatable with the capability of measuring forward and reverse flow rates, as well as total volume. HART protocol allows the use of PACTware for configuration and diagnostics. The sensor can be flanged or wafer style and is available with an assortment of standard liners and electrode materials.