Specification:Strip Total Length: 5m / 16.4 ft#1: Scale Reads From 1 to 14
#2:Scale Reads From 5.5 to 9.0Features:Brand New and high quality.Appropriate for testing alkaline or acid level of any liquidThe test strip color changes must be matched with the pH scale color chart within about 15 secondsGreat product to have in every lab and at home to measure and inspect water quality, makeup, saliva, soil, alkaline diet, food and moreInstruction:Simply press the testing strip to the object or liquid you are testing.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.Can not indicate the Acid or alkali solution when its density was lower than 0.01%.Keep dry for the rest paper.Package Included:1 x pH Test Strip Roll

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