Chlorine Analyzers and Controllers from ProMinent Fluid Controls provide precise monitoring or control of chlorine for potable and wastewater applications. They use amperometric sensor technology resulting in a reagent-free online analysis with no colorometric concerns or reagents. Packages are fully plumbed, wired and assembled on a back panel for easy wall mounting. Choose one of three packages by selecting one part number that includes a microprocessor analyzer, flow cell, flow sensor and a (2 or 10 ppm) free or total chlorine sensor. They have a reagent-free sensor design, are EPA Method 334.0 compliant and no service contract is required. 412/787-2484; www.prominent.us