pH Meters are necessary tools to give growers invaluable insight into the alkalinity or acidity of their water or nutrient solution. Whether you’re growing organically or with synthetic fertilizers - a reliable pH meter is a must-have.EC Meters measure the electrical conductivity of a nutrient solution. They are used by growers to be informed of how many nutrients or salts are present in the solution. With this knowledge, growers can fine-tune their feedings to enhance growth and flowering.