Good Water Warehouse, of Santa Barbara, Calif., introduces the OAKTON Instruments’ new economy line of portable conductivity and TDS (total dissolved solids) meters—the Acorn Con 5 and Acorn TDS 5. These are high accuracy microprocessor based instruments with breakthrough pricing and features that put them in a class of their own. The microprocessor technology in these meters gives the user temperature readouts with plus or minus 0.5 degrees C accuracy, automatic temperature compensation, auto-ranging, etc.