TDS Ec (Hold)Meter

FAI Overview    +2  A TDS and EC meter is used to measure the quality of water by determining the concentration of dissolved solids (TDS) and electrical conductivity (EC) within a liquid, essentially giving an indication of how much "stuff" is dissolved in the water, with EC being a proxy measurement for TDS levels; this is particularly useful in applications like hydroponics, aquariums, and water purification where monitoring dissolved minerals is important.