pH paper helps you to test acidic/alkaline levels in your DIY products so that you can create safe & effective products.
1pcs ph tester includes 80pcs strip papers(1set/80pcs)
- Simply press the bottom half of testing strip to the object or liquid you are testing (keep section you are holding dry). Gently & quickly remove paper and using the color chart included, compare the color change of the paper to find out the acidity level of your testing subject. The test strip color changes must be matched with the pH scale color chart within about 15 seconds.
- Paper will not indicate the Acid or alkali solution when its density is lower than 0.01%.