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Thermo Scientific Orion Star A326 pH/Dissolved Oxygen Portable Multiparameter Meter

CAD 3,842.18

This meter is designed for a wide range of pH, mV, ORP, dissolved oxygen and temperature testing and field applications. Evaluate samples in the most demanding locations using this waterproof meter with IP67-rated housing.

Special order item. Please call (250.868.3186) or message us using the inquiry form below.

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SKU: STARA3265 Categories: , , ,
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Take your measurements at the source with our premium line of portable meters. The Thermo Scientific Orion Star A326 pH/RDO/DO Portable Meter offers an information-rich screen and user-friendly operation. This rugged, waterproof portable meter is ready to tackle the elements with you. 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.
  • Combined convenience with the benefits of a pH meter and dissolved oxygen meter in one easy-to-use system
  • 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 5 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
  • 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 10 most recent calibrations
  • Non-volatile meter memory ensures your data and settings are protected, even with loss of power
  • Orion Star Com software facilitates data transfer to a computer via USB or RS232 connections
  • Flexible power options with AA batteries or optional universal power adapter
  • IP67-rated housing is waterproof for rugged field operation
  • Meter kits include hard-sided field case and protective meter armor with electrode holders, adjustable wrist/belt strap and built-in meter stand
  • Meters offer CE, TUV 3-in-1 and FCC Class A certifications


AC AdapterUniversal 50-60 Hz, 100-240 VAC power adapter (sold separately, Cat. No. 1010003)
OutputsUSB, RS232
Accuracy (Barometer)±6mmHg
Accuracy (mV)±0.2 mV or ±0.05% of reading whichever is greater
Accuracy (pH)±0.002
Accuracy (Polarographic DO)±0.2mg/L or ±2% of reading, whichever is greater
Accuracy (RDO)±0.1mg/L up to 8mg/L, ±0.2mg/L from 8 to 20mg/L, ±10% of reading up to 50mg/L
Alarm OutputHigh/low limit alarm, calibration due alarm
Backlight OptionYes, selectable
Barometric Pressure Correction400 to 850mmHg, automatic using built-in barometer or manual entry
Battery Life800 hr.
Battery Type4 AA (included)
CalibrationpH with calibration editing option, relative mV (RmV), ORP, dissolved oxygen and temperature
Calibration ModesWater-saturated air, air-saturated water, manual (Winkler titration), zero point
Calibration Points1 point relative mV (RmV) mode, 1 point ORP mode
Calibration Points (pH)1 to 5
Certifications/ComplianceCE, TUV 3-1, FCC Class A
Data Management DetailsTransfer single, range or all data points to printer or computer
Data Points5000 with date and time stamp
DescriptionOrion Star A326 pH/RDO/DO portable meter kit with ROSS Ultra Triode low maintenance gel pH/ATC electrode, RDO optical DO sensor, solutions, meter armor and field case
Display TypeLCD Graphic, Backlit
IP RatingIP 67
Measurement ModespH, mV, Relative mV, ORP with Temperature, Dissolved Oxygen (% Saturation), Dissolved Oxygen (mg/L with Temperature)
Percent Saturation Range Polarographic DO0.0 to 600.0 % saturation
Range (mV)±2000.0 mV
Range (pH)-2.000 to 20.000
Resolution (pH)0.1/0.01/0.001
Temperature Range (Metric)-5.0°C to +105.0°C
IncludesStar A326 pH/RDO/DO Meter with Batteries; 8107UWMMD ROSS Gel-filled Epoxy pH/ATC Triode with 3 Meter Cable; 087010MD RDO Optical DO Probe with 3 Meter Cable; 910410 pH 4.01 Buffer Pouches; 910710 pH 7.00 Buffer Pouches; 911010 pH 10.01 Buffer Pouches; 810001 Orion ROSS electrode storage solution; 01100710 Orion 1413 μS conductivity standard pouches; 911110 rinse solution pouches; Protective armor with electrode holder; Hard carrying case; AA batteries (installed)
InputsBNC (pH or ORP electrode), pin-tip (reference electrode), 8 pin MiniDIN (ATC temperature probe), 9 pin MiniDIN (RDO optical or polarographic DO sensor with built-in temperature)
Isopotential Point7.000pH
KeypadComprehensive with menu-specific function keys and dual purpose scroll/shortcut keys
LanguagesEnglish, Spanish, French, Italian, German and Chinese; Portuguese and Korean available with software update
Log Function TypeAutomatic data logging with Auto-Read and Timed measure modes; manual data logging with Continuous m
MemoryNon-volatile memory preserves data log, calibration log and meter settings
Methods10 per channel with password protection
ModelOrion Star A326 pH/mV/RmV/ORP/RDO Optical/Dissolved Oxygen/Temperature Portable Meter
Percent Saturation Range (Polarographic DO)0.0 to 600.0 % saturation
Percent Saturation Relative Accuracy (RDO)±2 % saturation ≤ 200 % saturation, ±10 % saturation > 200 % saturation
Percent Saturation Resolution (Polarographic DO)0.1, 1 % saturation
Percent Saturation Range (RDO)0.0 to 500.0 % saturation
Percent Saturation Relative Accuracy (Polarographic DO)±2 % saturation or ±2% of reading whichever is greater
Percent Saturation Resolution (RDO)0.1, 1 % saturation
Power Supply4 AA batteries (included) or universal AC adapter (sold separately)
Pressure Range400 to 850mmHg
Pressure Resolution1mmHg
Range (ORP)±2000.0 mV
Range (Polarographic DO)0.00 to 90.00mg/L
Range (RDO)0.00 to 50.00mg/L
Range (Relative mV)±2000.0 mV
Relative Humidity Range5 to 85 %, non-condensing
Resolution (mV)0.1mV
Resolution (Polarographic DO)0.01, 0.1mg/L
Resolution (RDO)0.01, 0.1mg/L
Salinity Factor0.0 to 45.0 ppt, automatic correction using manual entry of sample salinity
StabilitySelectable fast, medium, slow or Smart Stability setting; Selectable off or Automatic Smart averaging setting
Temperature Accuracy±0.1°C
Temperature (English) Operating41°F to 113°F (ambient)
Temperature (Metric) Operating5°C to 45°C (ambient)
Temperature Probe Calibration1 point temperature offset calibration
Temperature Range (English)22.0°F to 221.0° F
Temperature Resolution0.1°C, 0.1°F
Temperature SelectionManual or automatic with ATC temperature probe
Warranty3 Year Meter
Dimensions (L x W x H)24cm x 10cm x 6.5cm (9.5 in. x 3.9 in. x 2.6 in.)
Weight (English)1.2 lb.
Weight (Metric)0.5 kg
Unit SizeEach

We’re a supplier to the commercial winery, brewery, cidery & distillery industries across Canada & North America. Please fill in the form below to contact our in-house sales consultants. We’ll get back to you within 1-2 working days.

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