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Thermo Scientific Orion

Star A213 Dissolved Oxygen Benchtop Meter

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Thermo Scientific Orion Star A213 Dissolved Oxygen (DO) Benchtop Meter is the ideal choice for any lab. 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 and temperature along with time, date, sample ID, user ID and calibration information. For advanced users, features such as stability and averaging options and flash expansion through the USB provide additional options.

  • 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 Orion polarographic and RDO optical/ luminescence-based probes
  • Accurate results are easy with automatic temperature, manual salinity and your choice of automatic or 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 2000 data points with time and date stamp
  • Easily transfer data and keep meter software up-to-date with the USB and RS232 ports and included data analysis software
  • For faster BOD readings, control the Orion AUTO-STIR* polarographic DO probe (086030MD, sold separately) directly from the meter
  • Included electrode arm and newly-designed probe holder make it easier to maintain and place probes into samples
  • Works with almost every AC power source with the included universal power adapter, or use four AA batteries (sold separately) to run the meter on DC power
  • IP54-rated housing handles splashes and is wall-mountable if table space is a problem
  • 3 year meter replacement manufacturer warranty

Certifications: CE, TUV, FCC Class A limits

DO Mode
Concentration RangePolarographic: 0 to 90mg/L;
RDO optical: 0 to 50mg/L
Concentration Resolution0.01, 0.1
Relative AccuracyPolarographic: ±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 RangePolarographic: 0 to 600;
RDO optical: 0 to 500
% Saturation Resolution0.1, 1
Salinity Factor0 to 45 ppt, manual
Temperature Mode
Range-5 to 105
Relative Accuracy±0.1
DisplayGraphic LCD; simultaneous display of measurement, temperature, date/time, sample ID, user ID and more
Inputs8-pin mini-DIN, stirrer port
Sensor TypePolarographic or RDO (optical/luminesce-based) DO
OutputsRS-232, USB
Data Management2000 points with date/time stamp
Battery PowerFour AA (sold separately)
Battery Life2000 hours
Environmental Operating Conditions
Relative Humidity5 to 85% noncondensing
Special FeatureDirect control of stirrer (sold separately), Multi-language interface, Accepts polarographic or RDO optical DO probes
Power SupplyUniversal AC line voltage or optional four "AA" batteries
Warranty3-year meter replacement

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Star A213 RDO/DO BT Meter with Electrode Stand; 086030MD AUTO-STIR DO/BOD Probe with 2 Meter Cable; 080514 Polarographic Electrolyte Solution; 080513 Probe Maintenance Kit
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Star A223 RDO/DO Hand-Held Meter
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Star A223 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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