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Dissolved Oxygen Probes, Solutions & Accessories
Measuring Dissolved Oxygen
Dissolved oxygen, necessary for aquatic organisms, is an essential measurement to document changes due to natural phenomena and human activity. Optical dissolved oxygen probes are offered for field-ready applications. Polarographic laboratory-grade dissolved oxygen probes are available for more sensitive and critical measurements.
Featured probes: | View all |
| Rugged, low maintenance field probe | AUTO-STIR probe for BOD applications | Durable and accurate DO probes for the lab or field | Convert any pH meter into a DO meter | |
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| RDO Dissolved Oxygen field probe | Polargraphic DO probe for BOD w/Auto-stirring | Polargraphic DO probe for field or lab | Polargraphic DO probe for lab applications | |
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| Product SKU number | 087010MD 087020MD | 086030MDA,C | 083005MDA | 970899WP1* |
| DO Operating Range | 0-20mg/L 0-200% | -- | -- | -- |
| Accuracy | +/- 0.1mg/L (0-8mg/L) +/- 0.2mg/L (8-20mg/L) | +/- 0.05 ppm or 2% | -- | -- |
| Response Time | T90 = 30 seconds T95 = 60 seconds | T90 = 10 seconds T95 = 15 seconds | T90 = 10 seconds T95 = 15 seconds | T95 = 30 seconds |
| Temp. Range | 0°-50°C | 0°-50°C | 0°-50°C | 0°-45°C |
| Oxygen Consumption | -- | 0.008mg/h /mg/L @ 20oC | 0.008mg/h /mg/L @ 20oC | 0.1mg/h |
| Connector Type | MiniDIN | MiniDin, 3.5mm Phono 13 Pin DIN | MinDIN | BNC Waterproof |
| Accessories | 087001 Replacement RDO sensor cap.
087002Stainless steel protective guard, for RDO probe.
087003 Calibration sleeve for RDO probe.
| 080515 Replacement membrane cap.
| 080515 Replacement membrane cap.
080514 Polarographic electrolyte solution.
| 970801 1 pre-filled membrane cap.
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1 BNC Waterproof Connector A MiniDIN Connector C 8 Pin Waterproof DIN connector (A Series) G 3.5 mm Phono Tip Stirrer Jack Connector * Accuracy – ±0.05 ppm or 2 % of reading, whichever is greater Battery Life – One year based on 4 hours/day operation | ||||
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Differences between Thermo Scientific Orion polarographic DO and optical DO
Polarographic Probe | Optical Probe | |
| Maintenance | Replace electrolyte and polish cathode ~ every 2 months. Clean probe as needed | Clean, probe, cap and optical window as needed |
| Storage | In moist calibration sleeve, long term, remove membrane cap and store dry | In moist calibration sleeve |
| Membrane | Change as needed, ~ every 2 months | Must be replaced every one or two years depending on model. Do not use with solutions that contain organic solvents |
| Electrolyte | Change as needed, ~ every 2 months | None required |
| Warm-Time Required | Required if just connected to meter (30-60 minutes) | None required |
| Stirring | Required | Not necessary |
| Interferences | Ozone, sulfides, sulfur dioxide, nitrous oxide and carbon monoxide | Alcohols greater than 5%, hydrogen peroxide greater than 3%, sodium hypochlorite greater than 3%, gaseous sulfur dioxide and gaseous chlorine |
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RDO Optical DO Probe Accessories
Cat. No. | Description |
| 087001 | Replacement RDO optical cap |
| 087002 | Stainless steel protective probe guard for RDO probes |
| 087003 | Calibration sleeve for RDO probes |
View all electrochemistry meter accessories ›
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Polarographic DO Solutions and Accessories
Cat. No. | Description |
| 080513 | Maintenance kit, includes electrolyte solution, polishing disk and 2 membrane caps for 083005MD, 083010MD, 083025MD, 086030MD, 083005A, 083010A,083005D |
| 080113 | Maintenance kit, includes electrolyte solution, polishing disk and 2 membrane caps for 083005MD, 083010MD, 083025MD, 086030MD, 083005A, 083010A, 083005D |
| 080515 | 1 membrane cap for 083005MD, 083010MD, 083025MD, 086030MD, 083005A, 083010A, 083005D |
| 081003 | 3 membrane caps for 080510MD, 081010MD |
| 970801 | 1 pre-filled membrane compatible with previously discontinued probes 970899WP, 970800 |
| 080514 | Polarographic electrolyte solution for 083005MD, 083010MD, 083025MD, 083060MD, 086030MD, 083005A, 083010A, 083005D, 086020A, 081010F, 080510MD, 081010MD, 081010 |
| 080017 | Calibration sleeve for all DO probes excluding AUTO-STIR probes and RDO probe |
| 086021A | Calibration chamber/stand compatible with previously discontinued probes 086020A and 086030MD |
| 080360 | BOD adapter for 083005MD, 083010MD, 083025MD, 083005A, 083010A, 083005D |
| 080160 | BOD adapter for 081010MD |
| 970803 | 2 batteries for 970899WP |
| 080045 | Stainless steel and plastic protective probe guard for 080510MD, 083005MD, 083010MD, 083025MD, 083005A, 083005D, 083010A |
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View all electrochemistry meter accessories ›
Complete your dissolved oxygen measurements faster
We offer a range of dissolved oxygen (DO) measurement instrumentation and accessories designed to meet your standards for performance and price. Our DO meters, DO probes, and standards are designed to offer maximum repeatability and accuracy in your DO readings
The accuracy and reliability of your dissolved oxygen measurements depend on the instrumentation you use. Learn more about how you can identify the best match based on your required features, performance, specifications, and budget
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This Smart Note describes how you can perform accurate and repeatable dissolved oxygen measurements at altitudes of 4,500 meters above sea level.
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Knowledge Base: Certificates of Analysis and SDS for Orion, ROSS, AQUAfast, AquaMate, and AquaSensors products.
Orion Meters Software and Upgrades
Thermo Scientific Orion benchtop and portable meters are designed to help deliver accurate, consistent results, day after day. Boost productivity by upgrading your software today.
Style Sheet for Global Design System
Style Sheet for Global Design System