Industrial Test Systems Inc., of Rock Hill, S.C., announces a breakthrough in testing for hydrogen peroxide (H2O2) with Sensafe Low Range Peroxide Check. Utilizing the company’s aperture technology, the test allows for detection levels of 0.05, 0.3, 0.5, 1.0, 2.0, and 4.0 ppm, all in an easy dip-and-read procedure. Simply dip the test strip into a 250-ml (8 oz.) water sample for five seconds—with constant back-and-forth motion—shake off the excess, and view through the aperture to match to the closest color.