Dissolved Oxygen Probes

Dissolved oxygen probes are designed to measure dissolved oxygen concentration within liquid samples, making them essential lab accessories. The probes are suitable for environmental monitoring, assessments of water quality, and fermentation processes.
At Thomas Scientific, we have a great range of optical do probes, DO membranes, and Multiparameter Meters to accommodate a range of laboratory requirements. Some even offer suitability within the field environment.
Dissolved oxygen sensors are manufactured robustly and carry extensive memory functions. The helpful features of a three-color backlight (waterproof and floating in the water) can provide extra time and ensure ultimate efficiency when dealing with complex systems and measurement setups to achieve clear, accurate readings.

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Dissolved Oxygen Meters

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  • The YSI ProDSS ODO/CT probe is the first expansion of the ProDSS system. The ODO/CT probe and cable assembly features integral (i.e. built-in) optical dissolved oxygen, conductivity, and temperature sensors and is available in lengths up to 100 meters. It’s perfect for measuring DO in the…

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    Oakton

    Low-maintenance, galvanic probe requires no warm-up time Includes protective rubber boot which also functions as a benchtop stand These meters provide a great value. The ranges work to test water quality in wastewater, surface water, ground water, or drinking water. a clear LCD display…

  • Replaceable cap membrane Removable stirring mechanism Interchangeable design Simplifies measurement operations Use with standard 300 mL BOD bottles; no need for external stirring devices. Improved membrane life assures measurement consistency and speeds maintenance. Probe accuracy…

  • The ProODO™ handheld meter provides durability for the measurement of optical, luminescent-based dissolved oxygen for any field application. The ProODO is rated to IP-67 standards even without the battery cover on. In-house testing procedures also include 1M drop tests from all angles to…

  • Includes bottle of electrolyte, 1 sanding disc, and 6 screw-on cap membranes. 1.25 mL PE membranes.  Yellow cap. Response Time (T95 - from 0 to 100%) = 8 seconds Flow Dependence After 4 Minutes = 25% Required Flow Rate = 6 inches/second

  • The S600 SevenExcellence™ DO meter allows users to determine dissolved oxygen content in samples polarographically using any of METTLER TOLEDO's state-of-the art InLab® 605 polarographic dissolved oxygen sensors. The S900 SevenExcellence DO meter allows users to determine…

  • The YSI probe guard is compatible for use with 550A dissolved oxygen instrument. It is made of sturdy material which ensures durability and long lasting usage.

  • Robust polarographic dissolved oxygen determination outdoors Robust in design, optimized for one-handed use, and comprising an intuitive menu structure, the new Seven2Go portables offer quality dissolved measurement for laboratory, at-line, and outdoor environments. Simple Menu -…

  • The ProOBOD® self-stirring optical BOD probes are designed to fit into standard 300 mL BOD bottles with an international version also available for use with other tapers. EPA approved for wastewater compliance reporting of BOD and CBOD. The ProOBOD is designed for use with the YSI ProODO…

  • Usable with all classic grey box and lab meters Measures dissolved oxygen and temperature in B.O.D. bottles Designed to fit into neck of any bottle with a 0.675 inch opening Probe requires manual stirring or use of magnetic stirrer With Membrane and KCl kit. Lead, 1.5 meter (5 ft.).

  • Brilliant backlit display with dynamic stability indication Up to 500 point memory with date-time stamp for GLP Output data to PC or printer DO 2700 meter measures dissolved oxygen in mg/L, ppm, or % saturation with simultaneous temperature display in °F or °C. Independent 100% and 0%…

  • Measures dissolved oxygen from 0 to 20.0mg/L and 0 to 100.0% oxygen plus temperature from 32 to 122°F (0 to 50°C) Automatic Temperature Compensation from 0 to 50°C via temperature probe sensor built into polarographic type oxygen probe Offset adjustment used for zero function to make…

  • Convenient Portable Dissolved Oxygen Meter for Wherever Your Work Takes You. After more than a century of perfecting the art of measurement through our durable weighing products, OHAUS precision is now available in the form of

  • Handheld dissolved oxygen instrument for the lab or field! 3-year instrument; 2-year cable warranty User-replaceable cables and sensors. Choose polarographic or galvanic for the field or a self-stirring BOD probe for the lab One Touch Cal allows easy DO calibrations within 3 seconds…

  • Thermo Scientific Orion

    This versatile meter has a large, color graphic LCD display. The informative display shows readings, connections, time, date, sample ID, user ID and calibration information. Select from five modules to customize the four channels as you need it – it's versatile for you…

  • Accessory for Orion Dual Star, Star A and Versa Star Pro Meters: (2115000, 2115001, 2115101, 2115102, 2115201, 2115202, 2115203, 2115204, 2115205, STARA2110, STARA2114, STARA2115, STARA2116, STARA2117, STARA2118, STARA2119, STARA2120, STARA2125, STARA2126, STARA2130, STARA2135, STARA2136,…

  • Compact size is ideal for laboratory dissolved oxygen measurement applications Large brightly-lit LCD shows allows for easy viewing of measured values Low-maintenance galvanic probe requires no warm-up time Built-in memory stores up to 100 data points DO 700 meter…

  • Sper Scientific

    Measures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal waste water, aquariums and fish hatcheries Automatic temperature compensation as well as compensation for salinity and altitude (all factors directly effecting DO readings) …

  • Easy user-replaceble sensor allows for quick sensor replacements if needed.  Quickly switch DO sensors without having to send in the instrument for repair or replacing the entire cable assembly.  Uses convenient screw-on cap membranes making membrane changes simple and easy Use…

  • SevenGo™ instruments – robust meters for professional measurements The dual-channel instrument SevenGo Duo pro SG98 and the single-channel instrument SevenGo pro SG9 offer: Waterproof and dustproof in accordance with IP67 User-friendly display with background…

  • Robust, membrane-covered galvanic dissolved oxygen sensor for applications in flowing waters, fish hatcheries, aeration basins and more fields. With screw-on protection. The special membranes achieve stable measured values, especially in the aeration basin and similar applications with strongly…

  • Includes: Pro20 Meter, 4-meter cable with Polarographic DO probe, carrying case, cable management kit

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    Thermo Scientific Orion

    The Orion ROSS® pH electrode, which is recognized as the best pH electrode in the world for difficult samples, is now even better. The Orion ROSS® Ultra has twice the warranty and greater stability than its predecessor. It uses a unique reference system developed by Thermo Scientific that…

  • When used with any standard pH meter, the Orion™ 97-08 Oxygen electrode simplifies routine dissolved oxygen measurements, especially for biochemical oxygen demand (BOD). Polarographic O2 sensor plus solid-state circuitry in probe top; converts current to voltage for direct…

  • Easy user-replaceble sensor allows for quick sensor replacements if needed.  No tools necessary. Uses convenient screw-on cap membranes making membrane changes simple and easy Use with the Professional Plus and Pro20 instruments Cables must be ordered separately One-year…

  • Thermo Scientific Orion

    Convenient Auto-Stir™ DO probe for general purpose laboratory or field use.

  • A number of accessories are available for use with the 9500 dissolved oxygen meter.

  • Jenway (Cole-Parmer)

    The dissolved oxygen probes have been redesigned so that they are all the same diameter. As a result of this redesign the new probes have a narrower diameter than the old probes. The new probes are easily identified with a B after the probe part number on the probe or meter packaging. To…

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