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Lab Equipments & Instruments

Thermo Scientific Orion
Star A323 Dissolved Oxygen Portable Meter

The Thermo Scientific Orion Star A323 RDO/ Dissolved Oxygen Portable Meter is the top choice for advanced measurements on location. Get the information you need quickly and easily from the large, backlit graphic LCD display. Informative display shows dissolved oxygen in percent saturation or concentration with temperature and electrode status, time, date, sample ID, user ID and calibration points. Advanced features such as stability and averaging options provide additional options allowing for laboratory accuracy everywhere you need it.

  • Anyone can use this meter with its plain language screen prompts, soft keys that update for easy selection and a multilanguage interface that supports English, Spanish, French, Italian, German and Chinese
  • No need to worry about DO probe compatibility – the meter accepts and automatically recognizes Orionpolarographic and RDO optical/ luminescence-based probes
  • Accurate results are easy with automatic temperature, manual salinity and automatic/ manual barometric pressure compensation
  • Don't miss a reading – AUTO-READ* locks in the stable reading on your screen, ready indicator alerts when readings are stable and timed reading gathers data in specific time intervals
  • Calibrate using water-saturated air, air-saturated water, a Winkler titration or zero point calibration
  • Non-volatile memory holds up to 5000 data points with time and date stamp
  • Easily transfer data and keep meter software up-to-date with the USB and RS232 ports and complimentary data analysis software
  • Four AA batteries (included) provide over 800 hours of operation or purchase the universal power adapter (sold separately) to use AC power
  • Perfectly portable, waterproof and protected to take anywhere with a IP67-rated housing
  • Three year meter replacement manufacturer warranty

Certifications: CE, TUV, FCC Class A limits

Temperature Mode
Range -5° to 105° (23° to 221°)
Resolution 0.1 (0.1)
Relative Accuracy ±0.1
DO Mode
Concentration Range Polarographic: 0 to 90mg/L;
RDO optical: 0 to 50mg/L
Concentration Resolution 0.01, 0.1
Relative Accuracy Polarographic: ±0.2mg/L; ±2%
RDO optical: ±0.1mg/L up to 8mg/L, ±0.2mg/L up to 20mg/L, 10% of reading beyond; ±2%
% Saturation Range Polarographic: 0 to 600;
RDO optical: 0 to 500
% Saturation Resolution 0.1, 1
Salinity Factor 0 to 45 ppt, manual
Calibration Water-saturated air, air-saturated water, manual (Winkler) and zero point
Inputs 9-pin mini-DIN
Sensor Types Polarographic or RDO (optical/luminesce-based) DO
Data Management 2000 points with date/time stamp
Output RS-232, USB
Display Graphic LCD; simultaneous display of measurement, temperature, date/time, sample ID, user ID and more
Power Supply Four "AA" batteries or optional universal AC line voltage
Environmental Operating Conditions
Relative Humidity 5 to 85% noncondensing
Manufacturer Warranty 3-year meter replaceme
CanLab No. Mfr. No. Description
06X8121 STARA3230 Star A323 RDO/DO Hand-Held Meter
16X8121 STARA3235 Star A323 RDO/DO Hand-Held Meter;
087010MD RDO Optical DO Probe with 3 Meter Cable;
STARA-CS Star A Hand-Held Meter Hard Carrying Case;
STARA-AR Star A Hand-Held Meter Armor with Stand and Electrode Holders

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