New Optical Dissolved Oxygen Sensor is EPA Approved

Press Release Summary:

  • Suitable for handheld use or long-term deployment in fresh water or saltwater
  • Includes Modbus/RS485 communication protocol that supports easy integration with PLC systems and telemetry
  • Ideal for measuring DO and temperature in even the harshest environments

Original Press Release:

In-Situ Advances Dissolved Oxygen Monitoring with RDO Blue

FORT COLLINS, Colo., Oct. 27, 2020 /PRNewswire/ -- In-Situ is pleased to introduce RDO Blue, the latest innovation in Optical Rugged Dissolved Oxygen technology.

RDO Blue uses In-Situ's patented technology, an EPA-approved dissolved oxygen measurement method ideal for measuring DO and temperature in even the harshest environments. Suitable for handheld use or long-term deployment in fresh water or saltwater, this low-maintenance dissolved oxygen probe is particularly well-suited for use in a variety of surface water-monitoring and aquaculture applications.

"As the market-leading manufacturer of optical RDO, our primary goal with RDO Blue was to maintain the sensor's performance while making it a more affordable alternative for our customers," says In-Situ Product Manager Kate Haga. "It was essential to retain the accuracy we get with our replaceable Smart Cap and abrasion-resistant foils. But we also knew that a more cost-effective design, would be ideal for customers who require DO monitoring in multiple locations."

RDO Blue requires no calibration or conditioning prior to deployment and doesn't use membranes. The replaceable RDO Smart Sensor Cap stores calibration coefficients for automatic, error-free setup. A unique, three-layer system provides unmatched chemical and abrasion resistance. And high-quality Ryton construction provides enhanced reliability.

An included Modbus/RS485 communication protocol supports easy integration with PLC systems and telemetry, which can be paired with In-Situ's HydroVu data services for real-time feedback and process control.

"We're excited to make RDO Blue available to our customers around the world, and we're confident that it will meet their needs and surpass their expectations," says Haga.

CONTACT: Kate Haga,
Web Site:

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