Testing for pH, electrical conductivity (EC), and total dissolved solids (TDS) is vital for successful hydroponic farming. You do not have to make guesses about whether your nutrient solution has the right measures. All Grow Garden and Distribution proudly offer you instruments from the best brands in hydroponics Canada. These instruments offer all indoor hydroponic farmers an easy and innovative way for testing and controlling the pH, EC, and TDS of their hydroponic farms. These testers and meters are easy to use, well-built, reliable, and durable. View the many options we have for you here, buy and work towards ensuring you grow superior crops.