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T: 1 800 463-4363
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Dissolved Oxygen Benchtop Meter

Dissolved Oxygen Benchtop Meter

Brand:Thermo Orion
Product Code:Orion Star A113

Need more Info? (514) 354-2511 - 1-800-463-4363

Thermo Scientific Orion Star A113 Dissolved Oxygen Benchtop Meters combine simplicity with accuracy. 

Icons provide quick updates on battery life and completed calibration status. Simple button layout and onscreen messages help with calibration and setup menu choices.

Features and Benefits

  • Large, informative screen clearly shows the main information, including DO reading in mg/L or % saturation, temperature in ºC or ºF, meter mode and power source
  • Automatic temperature, manual salinity input and manual barometric pressure compensation for an accurate result • Don’t miss a reading – AUTOREAD ™ locks in the stable reading on your screen and ready indicator alerts when readings are stable
  • Two calibration options to meet your requirements: water-saturated air method or a Winkler titration • Accepts Thermo Scientific Orion polarographic dissolved oxygen probes
  • Non-volatile memory holds up to 50 data points
  • Included electrode arm and newly-designed holder make it easier to maintain and place probes into samples
  • Plug the meter into almost any power outlet with the included universal power adapter, or use four AA batteries (sold separately)
  • The IP54-rated housing can handle splashes and can be wall-mounted if table space is a problem
  • 3 year meter replacement warranty



Dissolved Oxygen
Range 0 to 20 mg/L
Resolution 0.01, 0.1
Relative Accuracy ±0.2
% Saturation
Range 0 to 200
Resolution 0.1, 1
Relative Accuracy ±2 %
Manual Barometric Pressure Correction 450.0 to 850.0 mm Hg
Manual Salinity Factor Correction 0 to 45
Calibration Features Water-saturated air, manual (Winkler)
Sensor Type Polarographic
Range 0 to 50 °C, 32 to 122 ºF
Resolution 0.1
Relative Accuracy ±0.1
Temperature Offset Calibration Yes
Number of Points 50
Log Function Manual, Automatic with AUTO-READ™
Log Edit Delete last reading or all
DO with Temperature Probe 9-pin mini-DIN
AC Adapter Optional– universal, 100-240 VAC
Battery Power Included– 4 AAs
Battery Life 2000 hrs

Ordering Informations

Cat. No. Description
Meters Only
STARA1130 Orion STAR A113 Dissolved Oxygen Benchtop Meter
- Electrode arm with redesigned holder
- Universal power adapter
STARA1135 Orion STAR A113 Dissolved Oxygen Benchtop
Meter Kit
- 083005MD Orion polarographic DO probe
- 080017 calibration sleeve for DO probe
- 080513 DO probe maintenance kit
- Electrode arm with redesigned holder
- Universal power adapter
STARA-BEA Benchtop electrode arm for Orion Star A-series meters
STARA-HB Freestanding base for use with Orion Star A-series benchtop electrode arm
083005MD Orion polarographic DO probe, 1.5 m cable
080513 Orion polarographic DO probe maintenance kit
080017 Calibration sleeve for Orion polarographic DO probes
970802 Orion BOD funnel and stirrer for use with polarographic probes
080360 Orion BOD bottle adapter for use with polarographic probes

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