SenSafe Free Chlorine water quality test strips combine a wide range of detection with our patented Free Chlorine indicator. Designed to resist interference from monochloramines, SenSafe Free Chlorine is the ideal product when testing water quality in a food processing environment. With its 2 methods of detection, SenSafe Free Chlorine is perfect for determining whether or not you have the correct amount of sanitizer present. Sold in bottles of 50 water quality test strips, all of the reagents are impregnated on the test strip pad, and no external chemicals are needed to perform the water quality test.