Dissolved Oxygen (DO) Meters

The Pro DIGITAL ODO/T probe and cable assembly features integral optical dissolved oxygen and temperature sensors. Cable lengths are available up to 100 meters. The ODO/T probe assembly pairs with the ProSolo Handheld to form a complete sampling system. Please visit the ProSolo ODO/T Kits page for...

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...

Easy to use, rugged and reliable, the YSI Pro1020 provides everything you need in a handheld instrument for the measurement of dissolved oxygen, temperature and either pH or ORP. User-replaceable sensors and cables, 50 data set memory, and convenient calibration routine makes it user friendly. A...

Convenient, compact design with large display Digital filter improves measurement speed and accuracy Clear large-screen LCD with white backlight Stable reading and automatic lock-up modes available IP57 waterproof and dust-resistant rated – great for use under harsh environments Includes...

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

Easy user-replaceable sensor allows for quick sensor replacements, if needed. No tools necessary. One-year sensor warranty. Uses convenient screw-on cap membranes making membrane changes simple and easy. Use with the Pro20, Pro20i, Pro1020, Pro2030, and Pro Plus instruments. Cables must be ordered...

Oxygen level displayed as % Saturation or Concentration (mg/L [ppm]) Adjustable Altitude Compensation (0-20,000ft in 1,000ft increments) Adjustable Salinity Compensation from 0 to 50ppt Analog bargraph indicates trrends Memory stores up to 25 data sets with DO and Temperature reading Self...

The StirrOx® G not only ensures the necessary flow with its stirrer, but also the mandatory mixing of the samples. It fits perfectly into the funnel of the Karlsruhe bottles or with a funnel set also in Winkler bottles.

Stores up to 25 data sets Waterproof to IP67 Adjustable salinity compensation The PockeTester dissolved oxygen tracer offers oxygen level displayed as % saturation from 0 to 200.0% or concentration from 0 to 20.00 ppm (mg/L). Unit features adjustable salinity compensation from 0 to 50 ppt and...

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 is the greater of...

The AQ600 is a Portable Dissolved Oxygen meter ideal for use in school laboratories. Dissolved Oxygen measurements are also very important in fish farms and ponds, where Oxygen levels are continuously monitored to obtain optimal reproduction. The AQ600 calibrates easily in 2 points (at 100%...

Dissolved oxygen and temperature field probe and cable assembly. Comes with a 5908 Cap Membrane Kit (1.25 Mil PE membranes).

An evolution of the Professional Series water quality meters, the ProSolo DIGITAL handheld replaces the ProODO as YSI’s most advanced optical dissolved oxygen field meter. Paired with the latest optical DO and temperature (ODO/T) probe, the ProSolo benefits from years of expertise in...

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 manufacturer’s...

The DO Auto-Stir™ probe is designed for fast and easy BOD analysis with the Thermo Orion 862A DO/BOD/Temperature Meter. The built-in stirrer provides vigorous sample agitation, preventing oxygen stratification and can easily be disassembled for cleaning. The probe stand, which is free...

Pro20i Parameters Dissolved Oxygen (DO%, DO Local, mg/L, ppm) Temperature (°C, °F) Barometric Pressure (mmHg, inHg, mbar, psi, kPa) The YSI Pro20i provides everything you need in a handheld dissolved oxygen meter. Ruggedness, simplicity and reliability are the cornerstones of the...

Fast and precise optical dissolved oxygen determination in the lab or outdoors Optimized for dissolved oxygen in the laboratory, at-line, or outdoors, the new Seven2Go Pro S9 portable is designed to provide users with fast quality data, one-handed operation and durability. Robust in design,...

Measures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal waste water, aquariums and fish hatcheries. Designed for simple one-hand operation with automatic temperature compensation and calibration to air. The polarographic probe has a built in...

1213U81 (WD-35640-80): Includes two complete membrane cap assemblies and 50mL of electrolyte solution. 1213U80 (WD-35640-72): Replacement membrane assembly consists of a preassembled membrane, membrane lock, O-ring, and cap. Simply screw replacement membrane assembly onto your probe. 7232C13...

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 illumination Reliable...

Optical oxygen sensor based on RDO technology Easy-to-replace OptiOx sensor caps Robust and manageable design OptiOx sensor cap The sensor cap for InLab® OptiOx oxygen sensors provides reliable results 365 days of the year. For replacement, old caps can simply be removed and new ones fitted. OptiOx...

Get the readings that you need where you need them with the Thermo Scientific Orion Star A223 RDO/Dissolved Oxygen Portable Meter. The large, backlit graphic LCD display shows dissolved oxygen in percent saturation or concentration with temperature and electrode status, time, date and calibration...

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...