Optical DO probe (Dissolved Oxygen sensor Vernier (USA))

The Vernier Optical DO Probe makes it easy to measure the dissolved oxygen concentration in water. Perfect for the field or for the laboratory, this plug-and-play probe requires no calibration, no filling solution, no warm-up time, and no stirring.

The 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.

Features

• 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
  

Specifications:

• 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 Range: 0–50°C
  
• Pressure Range: 228 mmHg to 1519 mmHg
  
• Minimum sample flow: none