Rosemount Analytical RDO Dissolved Oxygen Sensor
Starting at $2,650.00

Not in stock. Usually ships in 2-4 weeks [?]

Need Help? Call 1-800-884-4967 8:00am to 5:30pm ET


  • Uses the fluorescence quenching method
  • Accuracy: ±0.1ppm between 0.0 and 8.0ppm
    • ±0.2ppm between 8 and 20ppm
  • Low maintenance: sensing cap requires only annual replacement
  • Integral 10 meter cable or twist-lock connector option

The Rosemount Analytical RDO sensor is for use in wastewater aeration basins and ponds. The sensor uses the fluorescence quenching method so it does not require a flowing sample and is more resistant to fouling than polarographic sensors, an important advantage in wastewater where coating is a common problem. Less sensitivity to fouling means less need for cleaning and reduced operating costs.

The Rosemount Analytical RDO sensor has a range from 0 to 20 ppm (mg/L) or 0 to 200% saturation with an accuracy of up to ±0.1 ppm. The sensor is available with either integral or quick disconnect cable. The maximum cable length is 4000 ft (1219 m). A 1-1/4 inch FNPT fitting at the rear of the sensor allows a threaded pipe to be screwed into the sensor so it can be submerged in tanks or basins. Maintenance of the RDO sensor consists primarily of replacing the sensing cap every year. No special tools are required.

Rosemount Analytical 99CC Calibration Certificate
One certificate per lot at standard factory ranges only, includes the model, serial and/or tag numbers (does not include actual test data)
Rosemount Analytical Electronic Calibration
Certificate for specific unit, includes model, serial and/or tag numbers, test standards, NIST report numbers, & the actual test data
Rosemount Analytical Certificate of Origin
Original certificate of origin with chamber of commerce stamp
Rosemount 1410 Wireless Gateway
Connects WirelessHART networks with host systems & data applications, offers network flexibility for remote indoor operations
Rosemount 1420 Wireless Gateway
NEMA 4X gateway connects WirelessHART networks with host systems with the capacity for up to 100 devices
Rosemount 775 Wireless THUM Adapter
Enables wireless capabilities for 2, 3, or 4-wire HART devices to remotely manage, monitor & gather data