Optical DO probe (Dissolved Oxygen Sensor- Vernier)

  • Sale
  • Regular price QAR 2,320
Shipping calculated at checkout.


This Vernier Optical DO Probe uses luminescent technology to provide fast, easy, and accurate results, making it a terrific choice for biology, ecology, or environmental science courses. Students can measure dissolved oxygen concentration in surface water or 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.

  • Plug-and-play technology–no filling solution, warm-up time, stirring, or calibration necessary
  • Built-in temperature and pressure compensation
  • Easy maintenance
  • Switch setting to measure in units of mg/L or % saturation

The Optical DO Probe cap is warranted to be free from defects for a period of ​two years​ from the date of purchase. With proper use, the lifetime of the cap may be longer than two​ year​s​.


  • Range: 0 to 20 mg/L (or ppm), 0 to 300%
  • Accuracy:
    • mg/L
      • ±0.2 mg/L below 10 mg/L
      • ±0.4 mg/L above 10 mg/L
    • %
      • ±2% below 100%
      • ±5% above 100%
  • Response Time: 90% of final reading in 40 seconds
  • Typical Resolution: 0.006 mg/L
  • Temperature Compensation: automatic from 0–50°C
  • Pressure Compensation: automatic from 228 mmHg to 1519 mmHg
  • Minimum sample flow: none