RDO PRO-X Dissolved Oxygen Probe

The RDO PRO-X Dissolved Oxygen Probe uses optical technology (EPA-approved RDO Technology for Clean Water Act programs) to measure dissolved oxygen and temperature in demanding process environments. This durable probe requires no calibration or conditioning prior to deployment and does not use membranes.

The replaceable RDO Smart Sensor Cap stores calibration coefficients for automatic, error-free setup. Flexible communication protocols (4-20 mA, Modbus/RS485, or SDI-12) integrate easily with PLC systems, telemetry, and HydroVu Data Services for real-time feedback.

Why it works

• Patented RDO technology. EPA-approved optical method with a multilayer, abrasion-resistant sensing foil and no membranes or electrolyte to maintain.
• Smart Sensor Cap. Sensing foils are calibrated at 90 discrete points and the coefficients live in the replaceable cap. Press it on and go.
• Instant hydration. Reads accurately within 90 seconds of going from dry to wet, no 12 to 24 hour conditioning soak.
• Abrasion resistance. A three-layer system provides chemical and abrasion resistance that extends cap life.
• Smart addressing. Easy-to-configure Modbus interface for reliable integration into existing systems.

Base configuration; cable length is configured at order time. Contact us to spec the right configuration.