Lamotte Co., of Chestertown, Md., introduces the TRACER PockeTester for precise chlorine analysis using flat sensor technology. The waterproof instrument measures total chlorine from 0-to-10 ppm and includes a microprocessor that allows the user to add a pH or ORP sensor to test up to three factors. Since readings aren’t affected by sample color or turbidity, it can be used to test a wide variety of water samples. It has a bold display with an analog bar graph feature and displays sample temperature when testing chlorine or pH.