Thermo Scientific™

Orion™ RDO™ Dissolved Oxygen Probe

Measure dissolved oxygen levels without the difficulties of membrane replacement by using the Thermo Scientific™ Orion™ RDO™ Dissolved Oxygen Probe. RDO (Rugged Dissolved Oxygen) Probe uses optical DO technology for problem-free measurement.

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  • Utilizes the latest lumiphore technology for measuring DO
  • Once-a-year maintenance with a simple cap replacement
  • Sensor cable lengths of 3, 6, 10, 15 or 30m (10, 20, 30, 50 or 100ft)
  • IP68-rated, waterproof


RDO Probe, optical cap. stainless steel sensor guard and calibration sleeve


Orion Star Meter with RDO input

Compatible with:

087001 Replacement Optical Cap

087002 Replacement Stainless-Steel RDO Probe Guard

087003 Replacement Calibration Sleeve for RDO Field Probes

Warranty: 24 months from date of purchase by Buyer or 36 months from date of shipment from Seller, whichever is earlier

Disclaimer to internal research use restriction: Any restrictions on the purchaser to utilize the product(s) for internal research purposes only does not apply to the product(s) on the web pages associated with this statement.