Today's meters are engineered with smart features such as auto recognition of pH/ORP probe, auto-ranging adjustments for EC/TDS readings, and measurement check - to eliminate erroneous readings and simplify operations and handling. Quick calibration allows the user to standardize pH, conductivity and dissolved oxygen, all with one solution.

Michael Silvia is Market Manager with Hanna Instruments. He holds a BA in Biology with a background in Environmental Engineering. Hanna Instruments is a 30 year old manufacturer of analytical instruments, located at 584 Park East Dr., Woonsocket, RI 02895.