The conductivity testers collection features instruments that accurately measure water conductivity and total dissolved solids. Used in laboratory, environmental, food production, and water treatment settings, these testers offer high precision and instant digital readings. Many models include temperature compensation, logging, and calibration features to support compliance and data accuracy. Compact and robust, conductivity testers allow technicians and researchers to effectively monitor water quality, identify contamination, and maintain process control using dependable calibration support.