Since 1979, IC Controls has grown to the point where we research, design, manufacture and service our own brand of water Analyzers, Sensors and Chemicals, as well as private label manufacture for others. We specialize in measuring: pH, ORP, Conductivity, Salinity, Resistivity, High Purity, Total Dissolved Solids (TDS), %Concentration (Sodium Hydroxide - NaOH or Sulfuric ...