1.To avoid contamination of your water, we have equipped a pipette and a tube to help you collect the water to be tested, instead of directly adding water to the strip. In addition, if the water to be tested is not enough to hold the strip, it would be easy to test 16 parameters at the same time with the help of the sufficiently long fitting tube. 2.has been specializing in water testing and measurement for years and uses the most advanced technology for our products to ensure the professionalism and accuracy of monitoring water quality. 3.Water test kits for total alkalinity, pH, hardness, cyanuric acid, total chlorine, chlorine, nitrate, chrome, lead, copper, mercury, fluoride, carbonate root. These 16 test parameters are main factors that affect your water quality , such as filtered water, well water, tap water, drinking water or other water sources.