LMI Conductivity Controllers are designed for operation in a variety of water treatment applications. The DC4500 Series with the ability to Bleed & Feed and provide Dual Biocide Additions is designed for cooling tower applications. The DC4000 Series of Conductivity Controllers are designed for use with Cooling Towers, Boilers and Closed Loop Systems. Both are microprocessor based control systems that have multiple inhibitor feed modes and ranges from 0 – 20,000 µS. Conductivity probes and manifolds, motorized valves, and 4-20 mA output accessories are available.