Orion 4-Star Portable pH/DO Meter by Thermo Fisher Scientific

The rugged meter displays DO concentration or percent DO Saturation and offers a full complement of GLP-related features—including available 21 CFR Part 11 software option. It offers enhanced stability indicators, salinity correction and automatic barometric pressure compensation—as well an auto-read/hold function, SMART STABILITY™and SMART AVERAGING™.

A unique feature allows meter and probe calibration to a Winkler Titration for those needing to correlate measurements to Biological Oxygen Demand (BOD) readings to Winkler methods. You can record and store up to 10 setup parameters and calibrations—a valuable feature for multi-user labs. Download additional methods and software updates via the Web.