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August 2018



Correlating Loggers

SubSurface Leak Detection

Thousands of ZCorr Correlating Logger systems have been used all over the US, Canada, Europe, and Asia for many years, and now new ZCorr systems are available. Put eight ZCorr Correlating Loggers out in the afternoon and survey for water leak sounds at valves for hours late at night. Water main leak clearly apparent? Pinpoint it with just two or three ZCorr Correlating Loggers on valves, hydrants, or meters nearby. SubSurface Leak Detection, PO Box 5490, Incline Village, NV 89450; (775) 298-2701;



Multisensor Analyzer/Controller


The Chemtrac HydroACT units offer a variety of online analyzer solutions and accommodate up to eight different sensors. Combine a UV254 Organics sensor with streaming current detection and pH sensors to create a comprehensive coagulation monitoring system. Add a UV254 sensor to a chlorine analyzer for more thorough disinfection by-product monitoring. HydroACT units provide a high-resolution display, a user-friendly interface, PID control options, data storage and trend-graphing capabilities, and more. Chemtrac, Inc., Norcross, Ga.; (800) 442-8722;