Specification:Strip Total Length: 5m / 16.4 ftScale Reads From 1 to 14Features:– Appropriate for testing alkaline or acid level of any liquid.- The test strip color changes must be matched with the PH scale color chart within about 15 seconds.- Great product to have in every lab and at home to measure and inspect water quality, makeup, saliva, soil, alkaline diet, food and more.- Please do not dip the PH strips in the test liquid. It might lead to incorrectly showing test result.
Instruction:1. Simply drop the test liquid on the PH strips2. Half second later, take out the paper and using the color chart included, compare the color change of the paper to find out the acidity level of your testing subject.3. Can not indicate the Acid or alkali solution when its density was lower than 0.01%.4. Keep dry for the rest paper.Package Included:1 x PH Test Strip Roll,,,,,