Bluelab pH 4.0 Calibration Solution
To maintain accurate readings in your pH meter it should be cleaned and calibrated regularly at least once a month
What is pH? Why do I need to measure it?
Potential Hydrogen, commonly known as pH, is a number which indicates the acidity (below 7.0pH) or alkalinity (above 7.0pH) of a solution.
It is important to maintain a hydroponic nutrient solution at a pH where elements in the nutrient solution are most available to the plant.
In hydroponics, the range in which most elements are available is typically between 5.5pH and 6.5pH.
Strong acid (low pH) or strong alkali (high pH) conditions can upset the balance of a nutrient solution.
This can cause a loss of uptake for specific nutrients by the plants roots.
Essential for use with all Bluelab pH products for the calibration of Bluelab pH Probes