Optical DO (RDO) Spec Sheet - In-Situ - #1

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 low rates.

• Automatic setup: RDO sensor cap with pre-loaded calibration coefficients simplifies setup and eliminates programming errors.

• Fast response: Ideal for vertical profiling and dynamically

changing conditions.

• Operates with very low drift for long periods of time.

• Excels in hypoxic conditions.

• Responds quickly and maintains stable response.

Lower total cost of data acquisition and ownership ^2

• Eliminates time-consuming maintenance - No sample low requirements or stirring and no membrane or electrolyte to change, degrade, or foul.

• Reduces site visits - Calibration lasts for several months if sensor fouling is minimal and if the foil is not mechanically damaged or removed.

• Lowers scheduled maintenance costs - Field-replaceable caps - streamline maintenance.

• Minimal hydration effects - No conditioning necessary prior to use or if the sensor dries out.

• Eliminates "poisoning" by sulfides and has no cross-sensitivity to carbon dioxide, ammonia, pH, or any ionic species like sulfide, sulfate, chloride, or hydrogen sulfide.

• Withstands "thermal shocking" and photobleaching effects from ambient light.