GLI International Inc., of Milwaukee, offers analyzers for pH and ORP measurements in virtually all applications: the Series 63 analyzer’s true predictive and reactive diagnostics with logbook functions; the Series 53 general purpose full-featured analyzer; the Series 33 panel mount version, designed for OEMs and cost conscious end-users. All versions accept a wide variety of pH and ORP sensors. Other features include multiple analog outputs, relays and multi-language operation.