The TDS meter is a device that measures the Total Dissolved Solids (TDS) concentration in water, which includes minerals, salts, cations, anions, and organic matter. This measurement is important for applications such as reverse osmosis, water softeners, and aquariums.

Below are its main features:

• Function: Measures the electrical conductivity in the water, related to the amount of dissolved substances.
• Measurement in ppm: Estimates the total dissolved solids in parts per million (ppm).
• Acceptable limits: For drinking water, the maximum limit in the United States is 500 ppm, while in some areas of Greece it may be higher.
• Health risk: Levels above 1000 ppm are considered unsuitable for consumption.