Hach announced three new fully interchangeable IntelliCAL probes for its HQd line of meters. These probes provide portable measurement of ORP, sodium, and pH for low-ionic strength samples for analysis in the lab or field. With the addition of these new probes, Hach now offers a full suite for electrochemistry testing including BOD, Condutivity, DO, ORP, pH, and sodium. All IntelliCAL probes interchange fully with a single meter. When switching between parameters, the operator simply plugs the IntelliCAL probe into the HQd meter. The system does the rest, automatically recognizing the testing parameter from the probe and recalling the calibration history. System operation, equally as easy, uses an intuitive menu structure along with guided measurement and calibration methods; little to no operator training is required.Rugged probe versions, available in all parameters except sodium and BOD, make measuring in tough environments easier. These models feature longer cable lengths (options up to 30 meters), offering durability and signal integrity when spanning long distances such as rivers, bridges and lakes.