This budget EC meter is great for the hobbyist as it won’t break the bank! For more serious growers we would recommend investing in a Bluelab Truncheon. For growers on a budget, the Essentials Digital EC meter is a great value-for money piece of equipment. The Essentials EC Meter works by measuring the electrical conductivity of your nutrient solution via electrodes on the bottom end and then displays the measurement on an LCD display. This allows the user to be able to fine-tune the strength of their nutrient solution for optimal plant-growth.