Affordable and Smooth pH Tester without Batteries
Our liquid pH tester is straightforward to use and useful when the digital measuring device is unavailable. It has a measurement range from 4.0 to 8.5 and is sufficient for approximately 500 pH measurements with 30ml of solution.
Application of the pH Test Kit
To use the included test tube, fill it halfway with nutrient solution, add two drops of pH testing liquid, shake it, and read the pH value by comparing it with the color scale.