Thermo Scientific™ Orion Star™ A323 Dissolved Oxygen Portable Meter

Get high accuracy and premium performance everywhere you need it with the Thermo Scientific™ Orion™ Star A323 Dissolved Oxygen and RDO Portable Meter, designed for a wide range of dissolved oxygen and temperature testing and field applications. Evaluate samples in the most demanding locations using this waterproof meter with IP67-rated housing. Use an RDO optical or polarographic DO probe and calibrate using water-saturated air, air-saturated water, custom value (Winkler)
or zero point. Log up to 5000 data point sets with time / date stamp and easily transfer logs to a printer or computer.

• Measure dissolved oxygen in percent saturation or mg/L with temperature using Orion RDO optical DO probes or Orion polarographic DO probes
• Calibrate dissolved oxygen using water-saturated air, air-saturated water, custom value (Winkler titration) and zero point options
• Automatically compensate dissolved oxygen readings using ATC temperature, manual salinity input and built-in barometer for barometric pressure readings
• Informative, easy-to-read backlit graphic display with clear onscreen instructions simplifies operation
• Capture your critical readings with measurement stability indicator and selectable read modes – Auto-Read holds a stable reading, Continuous shows changing readings with hold option and Timed logs data at specific intervals
• Data log collects and date/time stamps up to 5,000 measurement sets with optional sample ID and user ID
• Calibration log stores ten most recent calibrations
• Non-volatile meter memory ensures your data and settings are protected, even with loss of power