Highlight Description: 1.Upgrade 14-in-1: with anti-VC interference ability, can test total alkalinity, pH, hardness, lead, copper, iron, mercury, chromium/Cr(VI), bromine, nitrate, nitrite, residual chlorine, Fluoride, sulfite. 2.Health: test strips are used for drinking water, household faucets, well water, freshwater ponds, and more water quality testing. For health, please use a professional drinking water test paper to test the water quality standard. 3.Easy to use: immerse the drinking water test paper for 5 seconds, let it stand in the air for about 30 seconds, and then align the color of the test paper with the back of the bottle to get the reading. Drinking water test strips are easy to use even for beginners. 4.Economical: the water quality should be tested weekly. A pack of our test strips includes 100 drinking water test strips. 5.Easy to carry: the size is 5.5 x 1.96 inches and the weight is 2.7 ounces. It is very convenient to carry it anywhere. 6.Scope of application: suitable for drinking water, aquariums, swimming pools and spas, industrial water, ponds, hot spring water, bathtub water, pesticide water, tableware disinfectant residual water. Detailed description: Material: pH test paper Size: 14 x 5 x 5 cm Test time: 60 s Test items: residual chlorine, pH, total alkali, hardness, iron, copper, lead, nitrate, nitrite, bromine, total chlorine, chromium, fluorine, cyanuric acid Notes: 1.Due to the difference between different monitors, the picture may not reflect the actual color of the item. 2.Please allow slight dimension difference due to different manual measurements. Thank you for your understanding. Parts List: 1 Bottle of 14 in 1 swimming pool test pH test paper (100 strips) ?l14 in 1 pool water tester?z with anti-VC interference ability, can test total alkalinity, pH, hardness, lead, copper, iron, mercury, chromium/Cr(VI), bromine, nitrate, nitrite, residual chlorine, Fluoride, sulfite. ?lQuick and easy water analysis?zimmerse the drinking water tes