Accurately measure pH, dissolved oxygen and temperature with the Orion™ Star™ A326 pH/DO/RDO Portable Meter for high performance in challenging field tests.

• Combined convenience with the benefits of a pH meter and dissolved oxygen meter in one easy-to-use system
• Calibrate dissolved oxygen using water-saturated air, air-saturated water, custom value (Winkler titration), and zero point options
• 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 5000 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™ A326 pH/DO/RDO Portable Meter, designed for a wide range of pH, mV, ORP, dissolved oxygen, and temperature testing and field applications.

Take measurements at the source with this premium line of portable meters. These meters feature an information-rich screen that allows user-friendly operation. This rugged, waterproof portable meter is ready to tackle the elements. Orion™ Star™ A326 pH/RDO/DO portable meters are designed to be easy to use, dependable field meters that offer advanced features and functions, including a 5000 point date log with sample ID and user ID options, calibration and high/low limit alarms, and password-protected measurement methods. Measure pH, mV, relative mV, or ORP with temperature on channel one and measure dissolved oxygen in percent saturation or mg/L with temperature using RDO optical DO probes or polarographic DO probes on channel two. Easily view individual measurements on a full screen display and quickly toggle to a split screen display to view multiple measurements simultaneously. Perform up to a five point pH calibration using automatic buffer recognition of NIST or DIN buffer groups with choice to manually enter custom buffer values and calibration editing option that allows individual points to be fixed without a full recalibration. 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 the two meter channels to measure pH and dissolved oxygen simultaneously or view each channel separately. Log up to 5000 data point sets with time/date stamp and easily transfer calibration and data logs via USB or RS232 to a printer or computer.