Industrial Test Systems Inc., of Rock Hill, S.C., has released a new patent-pending test strip. SenSafe Ozone Check is a unique test strip that’s designed to test for levels of ozone in water. Reporting levels at 0.05, 0.1, 0.2 and 0.3 ppm, the test strip gives you accurate results in only 30 seconds. The low detection ability with the strip is possible because of the unique aperture feature. The simple dip-and-read procedure makes testing easy since no technical experience is required to run the test.