Description: 2 in1 Pool tester test kit for ph value/DPD1 chlorine Package including: 100 testtablets(50X ph phenol red and 50x DPD1 chlorine),1 premium tester Quick and easy to use - makes it fast and easy to test your pool water before using your pool Provides a simple and easy way to measure pH and chlorine levels Size: 10x5x2cm/3.9x2x0.8 inches, High quality professional equipment Specification: Size: 10x5x2cm/3.9x2x0.8 inches Package Includes: 1 x premium tester 100 x testtablets(50X ph phenol red and 50x DPD1 chlorine) : Easy to use: 1. Immerse the test strip in water for 5 seconds. 2. Take out and wait for 30 seconds. 3. Compare the drinking water test strip to the color chart on the bottle.