Accurately monitor dissolved oxygen (optical/polarographic) and temperature with the Orion™ Star™ A323 RDO/DO Portable Meter for challenging field testing.

• Informative, easy-to-read backlit graphic display with clear onscreen instructions simplifies operation
• Capture critical readings with measurement stability indicator and selectable read modes
• Auto-Read mode holds a stable reading, continuous mode shows changing readings with hold option, and Timed mode 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
• Three-year meter warranty

Get high accuracy and premium performance everywhere needed with the Orion™ Star™ A323 sissolved oxygen and RDO portable meter, designed for a wide range of dissolved oxygen and temperature testing and field applications.

Take measurements at the source with this premium line of portable meters. These meter offers an information-rich screen and user-friendly operation. This rugged, waterproof portable unit is ready to tackle the elements. Orion™ Star™ A323 RDO/DO portable meters are designed to be easy to use, dependable field meters that offer advanced features and functions. Units offer a 5000 point date log with sample ID and user ID options, calibration and high/low limit alarms, and password-protected measurement methods. Measure dissolved oxygen in percent saturation or mg/L with temperature using Orion RDO optical DO probes or Orion polarographic DO probes. Automatically compensate dissolved oxygen readings using ATC temperature, manual salinity input, and built-in barometer for barometric pressure readings. Flexible power options with AA batteries or optional universal power adapter. Non-volatile meter memory ensures data and settings are protected, even with loss of power.

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.