GENERAL HYDROPONICS pH Test Kit

The GHE pH Test indicator is perfect for easy testing. It covers a wide range, going from 4.0 to 8.5. Simply fill the test-tube halfway with nutrient solution, add 2 - 3 drops of pH Test Indicator. Now you can Shake and then observe the resulting colour. Compare it with colour chart to check your pH level.

- Including colour chart
- For up to 500 tests
- Measuring range pH 4,0 - pH 8,5