pH test kit 30ml

T.A pH test kit 30ml 

Simple pH test for accurate measurement of the pH value in nutrient solution.

Wide range from 4.0 to 8.5, holds for approx. 500 tests.

Instructions for use:
Fill the test tube with nutrient solution, drip 1-2 drops of the test. Shake well and check the result on color chart.

Volume: 30ml