Vernier Software and Technology
Vernier Software & Technology

Dissolved Oxygen Probe

Dissolved Oxygen Probe product image

Use the Dissolved Oxygen Probe to determine the concentration of oxygen in aqueous solutions in the field or in the laboratory.


The Dissolved Oxygen Probe is great for biology, chemistry, ecology, or integrated science courses. It can be used to perform a wide variety of experiments to determine changes in dissolved oxygen levels, one of the primary indicators of the quality of an aquatic environment.

  • Built-in temperature compensation lets you calibrate in the lab, then make measurements outdoors without having to recalibrate.
  • Disposable caps with pre-fit membranes allow you to quickly and conveniently change membranes.
  • Calibrate in the units you choose: % dissolved oxygen, mg/L, or ppm dissolved oxygen

Sample Data



  • Range: 0 to 15 mg/L (or ppm)
  • Accuracy: ±0.2 mg/L
  • Response Time: 95% of final reading in 30 seconds, 98% in 45 seconds
  • Typical Resolution: 0.014 mg/L
  • Temperature Compensation: automatic from 5–35°C
  • Pressure Compensation: manual
  • Salinity Compensation: manual
  • Minimum sample flow: 20 cm/second

View the Dissolved Oxygen Probe user manual

Experiments and Lab Ideas

Select a lab book to see a list of experiments and more information.

Lab Ideas and Innovative Uses

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Compatibility Requirements

The Dissolved Oxygen Probe may require a compatible interface and software. Choose a platform below to see compatible interface and software options.

What’s Included

  • Vernier Dissolved Oxygen Probe (dissolved oxygen electrode with membrane cap)
  • One replacement membrane cap
  • Sodium Sulfite Calibration Standard (2.0 M Na2SO3) and MSDS sheet
  • D.O. Electrode Filling Solution, MSDS sheet, and filling pipet
  • Calibration bottle (empty, lid with hole)
  • D.O. Polishing Strips (1 pkg)
  • View the Dissolved Oxygen Probe user manual

Ordering Information

All prices are for U.S. educators.

NameOrder CodePriceQuantity
Dissolved Oxygen ProbeDO-BTA$229
Optional Accessories
DO Calibration SolutionDO-CAL$5
DO Filling Solution, 125 mLFS$6
DO Polishing StripsPS$4
Electrode SupportESUP$10
Membrane for DO SensorMEM$13
Primary Productivity KitPPK$44
Water Depth SamplerWDS$89


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Educational use only: Vernier products are designed for educational use. They are not appropriate for industrial, medical, or commercial applications. Product usage disclaimer »

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