- pH Test Paper Roll: the pH test strip has full pH range, measures pH values in the range of 0 to 14, pH color chart intervals: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, easy to read
- Material: pH paper is made of quality litmus paper, get fast and accurate results in just seconds with the quality pH test paper
- Multiple Applications: universal pH paper is good teaching supply for schools, lab, also can be applied to detect fish tank, hydroponics, aquariums, industrial testing, agricultural testing, and so on
- Easy to Use and Operate: remove a small test strip, touch the liquid to be tested, a few seconds later, compare the test results with the standard color on the card board, if there is no reaction can stay longer
- Scroll Design: lightweight and compact reel design for convenient use and carry; Each roll length approx. 16.4 ft/ 5 m, 2 roll, totally 32.8 ft