pH Test Strips in Rolls: The pH test strips measure from 0 to 14. The pH color chart includes 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 14, making them easy to read.

Material: The pH test strips are made of high-quality litmus paper. Using high-quality pH test strips provides fast and accurate results within seconds.

Versatile Applications: General-purpose pH test strips are excellent teaching materials in schools and laboratories. They can also be used in aquariums, hydroponics, fish tanks, industrial testing, and agricultural testing.

Easy to Use and Handle: Take a small piece of test strip, touch it to the liquid to be tested, and compare the test result with the standard color on the card after a few seconds.

Roll Design: The lightweight and compact roll design makes it easy to use and carry; each roll is approximately 5 meters long, with 4 rolls totaling 9.4 meters in length.