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What Is a Digital TDS Meter

• TDS (Total Dissolved Solids) refers to the concentration of dissolved ions (salts, minerals) in water.

• A digital TDS meter typically measures conductivity of water (how well it conducts electricity) and converts it to a TDS value using a conversion factor. 

• The reading is given in ppm (mg/L), which is a common unit for TDS.

• Advantages of Digital TDS Meters

  • Quick and easy measurement of dissolved solids.

  • Portable models are very practical for field / water-quality testing.

  • Can help approximate water purity or mineral content.

  • Some can also measure temperature, improving accuracy.

  • Many support auto temperature compensation to correct readings.