DescriptionUsage : Home DIYMaterial : Plasticis_customized : YesModel Number : test paperType : OtherBrand Name : tjlslzyhOrigin : Mainland Chinamaterial : 1-14 ph Litmus Paper5M/Roll Alkaline Acid Indicator Meter Test Paper 1-14 0-14 PH Meters For Water Urine Saliva Soil Litmus Accurate MeasuringNotePlease allow 1-3MM differs due to manual measurement.Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding.Can not indicate the Acid or alkali solution when its density was lower than 0.01%.Keep dry for the rest paper.Usage:Take out a test paper.The 2 color blocks all immersed in the liquid.After 1 seconds to take out, in contrast to the color of the color reading value in 30 seconds.Scale Reads From 0 to 14:0 - 3 indicates a very acidic substance4 - 6 indicates an acidic substance7 indicates neutral8 - 11 indicates alkalinity12 - 14 indicates a very high level of alkalinitySpecification:Brand newTotal length: approx. 5mPH range: 1-14Feature:With distinct color PH scale for result comparisons.The test strip color changes must be matched with the pH scale color chart within about 15 seconds.Quick and easy to use.Provides reliable and accurate pH readings.Easy to carry.Appropriate for testing alkaline or acid level of any liquid.Great product to have in every lab and at home to measure and inspect water quality, urine, saliva, soil, alkaline diet, aquariums etc.Great for science education.