USFilter, of Vineland, N.J., announces the new Depolox Basic residual chlorine analyzer by the company’s Wallace & Tiernan Products. The unit is a “bare bones,?? “no frills,?? low cost, economical analyzer that continuously measures either free or total residuals. It utilizes proven and universally accepted amperometric measurement technology. Even though the analyzer is a no frills analyzer, it uses the accurate and stable 3-electrode measuring technology, and has the ability to measure total chlorine without reagents.