Your pH and EC are two of the most crucial parameters to keep in check. With an incorrect pH/EC your plants will suffer: Deficiencies and toxicities become far more common, nutrient lockout can occur, roots will burn and die off/back, as well as a myriad of other issues that not only hurt your plants, but can and will kill them. Using the right tools to ensure accurate pH and EC feedings will eliminate the guesswork and bring your plants into optimal form and health.