Using the latest technology to measure dissolved oxygen, the next generation In-Situ^® RDO^® optical dissolved oxygen sensor offers several advantages for long-term and ambient water quality monitoring.

• Rugged design – Wiper-free sensor excels in demanding environments. Abrasion-resistant foil withstands fouling, high sediment loads, and rapid flow rates.
• Automatic setup – RDO sensor cap with pre-loaded calibration coefficients simplifies set up and eliminates programming errors.
• Fast response – Ideal for vertical profiling and dynamically changing conditions.

Press Release
September 3, 2008 In-Situ^® Announces the Technologically Advanced RDO^® Optical Dissolved Oxygen Sensor for Water Quality
Click here for a printable version of the press release.

Image Gallery

• 
  RDO^® sensor direct connect

• 
  RDO and TROLL^® 9500 water quality instrument

• 
  TROLL 9500 with an RDO sensor being used to measure dissolved oxygen in the Poudre River, Colorado

• 
  Lumiphore excitation process

• 
  In-Situ^® RDO sensor design

Additional Resources

• Product overview
• Technology backgrounder
• RDO sensor specifications
• RDO and TROLL 9500 water quality instrument