pH Test Kit 30mls

Liquid pH test kit.  Test from 4.0 to 8.0 pH range.. For hydroponic solution only. Simply half  fill the test tube with the solution to be tested and add 1 drop of the tester tand shake well.  Then compare the colour of the test tube to the colour chart on the side of the bottle to ascertain the oH of the tested solution.

Extremely reliable, accurate and user friendly