The OZ80 Ozone Analyzer from Electro-Chemical Devices has a reagentless design for low operating costs and offers a choice of three factory-calibrated measurement ranges designed to help process and plant engineers achieve accurate measurement with a simple easy-to-install system that can be up and running in less than 15 minutes. It is factory assembled and calibrated prior to arriving at the plant. All the technician needs to do is mount the panel and connect the drainlines, plug in the power cord and select the outputs on the display as 0 to 2 ppm for water disinfection or 0 to 20 ppm for oxidation and bleaching operations. Dual-range measurement of both ozone parameters is also available. Powerful amperometric sensors detect and monitor ozone levels in water. They are manufactured with a gold cathode, a silver anode and a rugged microporous membrane. 800/729-1333; www.ecdi.com.