1pc 5M Alkaline Acid Indicator Meter Test Paper Roll 0-14 1-14 PH Meters For Water Urine Saliva Soil Litmus Accurate Measuring

Product Details: It has different chromaticity PH scales for comparison of results. The color change of the test paper must match the pH scale color table within about 15 seconds. Fast and easy to use. Provide reliable and accurate pH readings. Easy to carry. Suitable for testing the alkaline or acid level of any liquid. Excellent products available in every laboratory and home that can measure and check water quality, urine, saliva, soil, alkaline diet, aquariums, etc. Very suitable for science education. usage: Remove the test paper. Both color blocks are immersed in liquid. Take it out after 1 second, and the color of the contrast color will be read within 30 seconds. PH range: 1-14 Package Included: 1 roll of PH test paper note: When its density is lower than 0.01%, it cannot indicate acid or alksolution. The rest of the paper remains dry. Due to manual measurement, please allow an error of 0-1 cm. The color of the itshown in the photo may be slightly different on the computer monitor because the monitor is not calibrated the same.

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