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Dissolved Oxygen

"We have used YSI products for many years. We still use DO meters purchased in 1975."

Every species on our planet depends on water and oxygen. For aquatic species, adequate dissolved oxygen is of prime importance to their continued survival. Since dissolved oxygen levels are directly related to good water quality, the two are highly interdependent. Many factors can affect DO levels, and an understanding of these levels in order to make informed decisions concerning wastewater treatment operations, hypoxic zones, aquaculture facilities or large-scale ecosystems is essential.

We Know DO
We Know DOWe Know DO ROX Dissolved Oxygen Probe for long-term monitoring in fresh or sea waterROX Dissolved Oxygen Probe for long-term monitoring in fresh or sea water YSI ODO, Optical Dissolved Oxygen, IllustrationYSI ODO, Optical Dissolved Oxygen, Illustration
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YSI has Authorized Distributors all over the globe. View a map and find your closest contact for YSI Dissolved Oxygen products and accessories.

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Get Support

Have a question about your YSI Dissolved Oxygen product? Check out the support page with resources compiled just for you.

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Product Service Centers

Want to return a product for service? Here you’ll find authorized service centers and instructions on how to send in your YSI Dissolved Oxygen product.

Product Service

 

As the pioneers in DO, YSI commercialized the first practical dissolved oxygen sensor using the Clark Polarographic electrode in 1962 based on the work of Dr. Leland Clark in conjunction with YSI scientists. This technology became, and still is, the trusted global standard for dissolved oxygen measurement. In 1992, YSI released the patented Rapid Pulse® stirring-independent oxygen sensor which revolutionized the measurement of dissolved oxygen in long-term monitoring applications.

In 2005, YSI released its first optical dissolved oxygen sensor that utilized luminescent technology. The wiped ROX® probe significantly increased customer value by reducing costs associated with maintenance, especially when used in long-term monitoring applications.

The ultimate in handheld optical dissolved oxygen measurement can be found on the ProODO®. The ODO® (Optical Dissolved Oxygen) luminescent sensor has no flow dependence making it the perfect choice for applications like deep water profiling where stirring is difficult or undesirable. No flow dependence also reduces the possibility of operator error due to inadequate stirring, ensuring high quality data.  However, stirring, or movement, of the optical DO sensors does improve response time.  YSI may be the only ones who will tell you that.

When it comes to dissolved oxygen measurement, YSI offers more knowledge, more experience and more technology options than any other company. We hope you find this resource page helpful and informative. Visit it frequently. After all, “We Know DO™".

We invite you to download, for free, the very popular The Dissolved Oxygen Handbook.  This resource on dissolved oxygen measurement, dissolved oxygen sensors, and dissolved oxygen data has been a huge hit and you can receive it free.  Please see the link to the left hand side of the page.

YSI Rapid Pulse vs ROX Sensors - Cost Comparison

Flow Dependence Tests

DO% to mg/L Calculator [Excel Spreadsheet]

Optical vs Steady State DO Comparison

Oxygen Solubility Table

Diagram of ROX Sensor Operation

Diagram of Clark Electrode Operation

External Resources

US EPA: Monitoring and Assessing Water Quality

Locate Your Regional EPA Office

North Central Labs Book on Laboratory Testing for BOD and CBOD

Dissolved Oxygen Concentrations in Pond Aquaculture

How Does Temperature Affect Your Dissolved Oxygen Measurements?

How Does Salinity Affect Your Dissolved Oxygen Measurements?

How Does Barometric Pressure Affect Your Dissolved Oxygen Measurements?

How Does Flow Dependence Affect Your Dissolved Oxygen Measurements?

Dissolved Oxygen Depletion in Lake Erie (EPA)

Is it Hard to Change a Dissolved Oxygen Cap Membrane?

Dissolved Oxygen Meters - Which Membrane Type Should I Use?

Manuals

IQ SensorNet TriOxmatic 702 Sensor User Manual

IQ SensorNet TriOxmatic 701 Sensor User Manual

IQ SensorNet FDO Sensor User Manual

IQ SensorNet TriOxmatic 700 Sensor User Manual

ProOBOD User Manual

ODO200 Optical Dissolved Oxygen and Temperature Instrument | Operations Manual | English, Français, Españo, Portuguese

YSI 5400 and 5500D User Manual

6-Series Sonde Quick Start Guide

Guides

YSI Dissolved Oxygen Membrane Selection Guide

Handheld Dissolved Oxygen Model Comparison Guide

Handheld Dissolved Oxygen Response Time Comparison Guide

Handheld Response Times and Membrane Guides

Model Pro20 vs 55 Comparison Guide

Feed Smart Feed Timer Overview

FAQs - Frequently Asked Questions

YSI 55 DO Instrument FAQs

YSI 5000 / 5100 DO Instrument FAQs

ROX Optical DO Sensor FAQs

YSI EcoSense FAQs

Dissolved Oxygen Measurement FAQs

Tips

6-Series Sonde Calibration, Maintenance & Troubleshooting Tips

Professional Plus Handheld Calibration Tips

Specification Sheets

YSI Pro2030 Dissolved Oxygen/Conductivity Meter Specification Sheet

YSI ProOBOD Optical BOD Probe

YSI EcoSense ODO200 Optical Dissolved Oxygen/Temperature Specifications

MultiLab 4010-1, 4010-2 and 4010-3 Laboratory Meters

YSI Pro1020 Dissolved Oxygen, pH or ORP Meter Specification Sheet

YSI 5400 Continuous MultiDO Monitor Specifications

YSI 5200A Continuous System Monitor Specifications

YSI 5500D Continuous Monitoring and Control Instrument for Optical Dissolved Oxygen

YSI ProODO Optical Dissolved Oxygen Meter Specification Sheet

Français - YSI ProODO qualité de l'eau Spécifications de l'instrument

YSI Pro20 Dissolved Oxygen Meter Specification Sheet

Español - Dissolved Oxygen Meter Specification Sheet for the YSI Pro20 Portable DO Meter

YSI Professional Plus Water Quality Meter Specifications

Français - YSI Professional Plus qualité de l'eau Spécifications de l'instrument

Español - YSI Professional Plus de Calidad del Agua de instrumentos Especificaciones

YSI BOD Analyst Pro™ Desktop Software

IQ SensorNet FDO Optical DO Sensor Specification Sheet

YSI IQ SensorNet 182, 182 XT, 182 XT-4 Specifications Sheet

YSI IQ SensorNet 2020 XT Specifications Sheet

YSI ROX Optical Dissolved Oxygen Sensor

Catalogs & Brochures

IQ SensorNet Wastewater Process Monitoring & Control Catalog

Aquaculture Monitoring & Control

YSI Vertical Profiling Systems

Dissolved Oxygen Case Studies & Solutions

Storm Water Monitoring Kits

News Briefs

Optical Dissolved Oxygen Sensors Gain Full EPA Approval

Dissolved Oxygen Meters: Features to Consider Beyond Sensor Technology when Selecting a DO Meter

Application Notes

Watching the Watershed

Dissolved Oxygen Monitoring and Control in Shrimp Production with the YSI 5500D

IQ SensorNet and SCADA Combined to Reduce Costs and Improve Effluent

IQ SensorNet Continuous Process Monitoring of Ammonia and DO at WWTP

Network Monitors Water Quality in Shale Gas Drilling Region

Water Quality Is Key to the Success of Cardiff Bay Restoration

Lake Tanganyika Productivity and Nutrient Uptake Research with the ProODO

Using Real-time Telemetry for Ecological Monitoring of Coastal Wetlands

Students Monitor Harlem River Water Quality and Air Quality, Seek Solutions

ECSI Manages Habitat in High Hydrogen Sulfide Environments with Optical DO

Desalination Plants: YSI Instruments Monitor Flow & Water Quality at Multiple Stages

Vertical Profiling Safeguards Drinking Water and Sheds Light on Cyanobacteria

Dissolved Oxygen Management and Related Costs in Pond Aquaculture

Español - Gestión del Oxígeno Disuelto y costes relacionados en estanques de piscicultura

Managing and Protecting Remote Source Water for the East Bay Area

Public-Private Contract Safeguards Malaysia’s Water Quality

Pontoon-Mounted Autonomous Monitoring System Keeps Constant Watch on Harmful Algal Blooms

Unattended Water Quality Monitoring Protects Domestic Water Supply at Taiwan’s Shimen Reservoir

Improving Microbial Efficiency at Wastewater Treatment Plants with ROX™ Optical Dissolved Oxygen Sensor

J. Lohr Winery Utilizes YSI Instruments in Managing Dissolved Oxygen

YSI DO200 Assists Roland Martin in Determining Fishing Locations

Technical Notes

Restoration Procedure for YSI Membrane Covered Dissolved Oxygen Probes Exposed to H2S or SO2

How to Ensure Accurate and Successful BOD Measurements

YSI 6562 Rapid Pulse™ Dissolved Oxygen Probe Membrane Maintenance

Environmental Dissolved Oxygen Values Above 100% Air Saturation

Care, Maintenance, and Storage of YSI 6-Series Probes and Sondes

YSI 6600V2 Comprehensive Monitoring System - View of Sensor Configuration
 

6600V2

Make the most of your environmental monitoring.

 

The YSI 6600 V2 data sonde is the most comprehensive water quality monitoring equipment available with simultaneous measurement of conductivity (salinity), temperature, depth or level, pH/ORP plus...

 

YSI 6920 V2-2 sensor view showing Temperature/Conductivity, Chloride, pH, as well as Optical DO and Turbidity.
 

6920 V2

Compact Data Sonde for Unattended Monitoring

 

The YSI 6920 V2 sonde is an economical water quality logging system, ideal for long-term in situ monitoring and profiling.

Real-time turbidity monitoring, dissolved oxygen monitoring, algae monitoring, and more.

 

YSI 6820 V2 showing sensors, starting clockwise from top: ROX Optical Dissolved Oxygen, Turbidity, pH, ISE, and temperature/condutivity.
 

6820 V2

Compact Sonde for Field Sampling

 

The YSI 6820 V2 is a cost-effective data sonde for profiling and spot-checking water quality in rivers, lakes, wetlands, wells, estuaries, and coastal waters.

     

    YSI 600OMS V2 shown with probe guard attached.
     

    600OMS V2

    Single-Parameter, Low-Cost Optical Monitoring System

     

    Measure optical dissolved oxygen, chlorophyll, blue-green algae, rhodamine, or turbidity in combination with temperature, conductivity and depth. Designed for use in fresh, sea or polluted waters, the 600OMS V2 data sonde utilizes the field-proven YSI sensors and incorporates innovations in water quality sensor configuration such as a conductivity and temperature module that fits into the sonde body.

     

    YSI 600XLM V2 shown without probe guard.
     

    600XL V2 and 600XLM V2

    Small Packages - Economical Sampling or Logging


    Both the YSI 600XL V2 (sampling) and the YSI 600XLM V2 (logging) data sondes offer economical solutions in small packages for surface water and ground water applications. Both models easily fit into 2-inch wells and measure a range of fundamental parameters, including oxygen - with the YSI ROX™ optical dissolved oxygen sensor - and level, using a highly-accurate vented sensor.

     

    The YSI 6600EDS showing Turbidity (center) with attached wiper brush, Clockwise from top: Chlorophyll, pH/ORP, Temperature/Conductivity, and Rapid Pulse Dissolved Oxygen Sensors.
     

    6600EDS

    Extended Deployment for Harsh Environments

     

    The 6600EDS multiparameter sonde accurately measures 10 parameters in severe fouling environments for extended periods. The sonde has two optical ports, conductivity/temperature port, Rapid Pulse DO port, and pH/ORP port. The 6600EDS also offers an extended brush that cleans the pH/ORP and Rapid Pulse DO sensors.

     

    YSI 600QS 'Quick Sample'
     

    600QS

    The Quick Solution to Handheld Sampling

     

    Combined for convenience, the YSI 650 MDS display-datalogger and the YSI 600R sonde allow you to collect 11 parameters simultaneously in real time.

     

    YSI 600R shown with probe guard attached.
     

    600R

    Water Quality Sampling Sonde

     

    The YSI 600R provides water quality sampling in a small package for surface water and ground water applications. With a diameter of less than two inches (4.2 cm), the 600R easily fits into wells.

     

    YSI 6500 Process Monitor
     

    6500 Process Monitor

    Improve Operational Efficiency with Continuous Data

     

    With 8 scalable 4-20 mA current loop channels, 4 SPDT relays, and the ability to continuously monitor dissolved oxygen, conductivity, temperature, and pH via a YSI 6-Series sonde, the YSI 6500 helps you stay one step ahead in data collection.

     

    YSI 5200A Multiparameter Continuous Monitor and Control Instrument
     

    5200A

    Multiparameter Monitoring and Control Instrument

     

    Designed specifically for Aquaculture Systems, the YSI 5200A and AquaManager™ Software integrate process control, alarming, and data management into one product. Simple enough to monitor one tank, powerful enough to manage a full scale farming operation from anywhere in the world. Simultaneously measure dissolved oxygen, pH, conductivity, ORP, salinity and temperature.

     

    YSI 5400 MultiDO Monitoring and Control Instrument
     

    5400

    MultiDO Monitoring and Control Instrument

    Designed specifically for Aquaculture Systems, the YSI 5400 and AquaManager® Software integrate process control, alarming, and data management into one product. Simple enough to monitor one tank, powerful enough to manage a full scale farming operation from anywhere in the world. Simultaneously measure dissolved oxygen in multiple tanks or ponds.

     

    YSI Professional Plus Shown with Single Parameter Cable and Probe Assembly
     

    Professional Plus

    Handheld Multiparameter Instrument

     

    The YSI Professional Plus handheld multiparameter meter provides extreme flexibility for the measurement of a variety of combinations for dissolved oxygen, conductivity, specific conductance, salinity, resistivity, total dissolved solids (TDS), pH, ORP, pH/ORP combination, ammonium (ammonia), nitrate, chloride and temperature. Also a very powerful lab instrument for BODs, pH and ORP.

     

    YSI ProODO Measuring Dissolved Oxygen in Aquaculture
     

    ProODO

    Handheld Optical Dissolved Oxygen Meter


    "We are very pleased with the convenience, usability, and ruggedness of the ProODO; and highly recommend it to anyone needing to monitor dissolved oxygen."

     

    The YSI ProODOTM handheld dissolved oxygen meter provides extreme durability for measuring DO with optical, luminescent based technology for field or lab.

     

    YSI Pro20 Lab or Field Dissolved Oxygen Meter
     

    Pro20

    Lab / Field Dissolved Oxygen

     

    The Pro20 provides everything you need in a handheld dissolved oxygen meter. Ruggedness, simplicity and reliability are the cornerstones of the instrument's design.

     

    YSI Pro1020 Dissolved Oxygen, pH or ORP Meter
     

    Pro1020

    Field dissolved oxygen / pH / ORP

    The Pro1020 provides everything you need in a handheld meter that measures dissolved oxygen and temperature along with either pH or ORP (redox). Rugged, simple and reliable.

    Measure pH or ORP, dissolved oxygen, and temperature.

     

    YSI Pro2030 Field Dissolved Oxygen/Conductivity Meter
     

    Pro2030

    Field Dissolved Oxygen / Conductivity

    "YSI did a great job on this design.  Our staff of about 20 people consists of old veterans to recent college grads, and not one so far has had a negative comment."

    The Pro2030 provides everything you need in a handheld dissolved oxygen meter that automatically compensates for changes in salinity values. Rugged, simple and reliable.

    Measure DO, salinity, conductivity, specific conductance, TDS, barometric pressure and temperature.

     

    YSI 556 Handheld Multiparameter Sampling
     

    556MPS

    Handheld Multiparameter Instrument

     

    Rugged, reliable and waterproof, the YSI 556 MPS (Multiprobe System) combines the versatility of an easy-to-use, easy-to-read handheld unit with all the functionality of a multiparameter system.

     

    YSI 5000/5100 Laboratory BOD and DO Meters
     

    5000 / 5100

    Laboratory Instruments for BOD Tests

     

    Both instruments feature: auto-calibration, large, graphic displays and low keypad profiles for maximum efficiency.

     

    YSI 5500D Continuous Optical Dissolved Oxygen Instrument for Aquaculture
     

    5500D

    MultiDO Monitoring and Control Instrument

    Designed specifically for Aquaculture Systems, the YSI 5500D and AquaManager® Software integrate process control, alarming, and data management into one product. Simple enough to monitor one tank, powerful enough to manage a full scale farming operation from anywhere in the world. Simultaneously measure dissolved oxygen with optcial technology in multiple tanks or ponds.

     

    YSI BOD Analyst Pro Screen Shot
     

    BOD Analyst Pro™

    Desktop Software

    Automatically calculate BOD/CBOD values with the BOD Analyst Pro desktop software.

     

    YSI 4010-1 Laboratory Instrument
     

    MultiLab 4010-1

    Laboratory Instrument for pH, ORP, conductivity and BOD in any combination

    Perform accurate lab pH, ORP, conductivity or BOD measurements with the YSI 4010-1.

     

    YSI MultiLab 4010-3 Laboratory Instrument
     

    MultiLab 4010-2 and 4010-3

    Laboratory Instruments for pH, ORP, conductivity, BOD and ISEs in any combination

    Perform accurate lab pH, ORP, conductivity, BOD or ISE measurements with the YSI 4010-2 or 4010-3 in any combination.

     

    YSI IQ SensorNet 2020 XT Wastewater Monitoring System
     

    IQ SensorNet 2020 XT

    Improve Operational Efficiency with Continuous Data

    With an easily scalable solution, the 2020 XT allows for the connection of up to 20 sensors. This modular plug-and-play system allows you to monitor the water quality in your wastewater system continuously and accurately.

    "The simple cabling infrastructure - being able to run one cable that provides both power and data-transfer made so much sense."

     

    YSI IQ Sensor Net 182 XT Stacked on Modules
     

    IQ SensorNet 182 Models

    Improve Operational Efficiency with Continuous Data

    With an easily scalable solution the 182, 182 XT, and 182 XT-4 allow for the connection of 1-4 sensors depending on which terminal you choose. Add sensors at any time and at any location or change them out with ease. This completely modular plug-and-play system allows you to monitor the water quality in your wastewater or aquaculture system continuously and accurately.

     

    YSI EcoMapper AUV
     

    EcoMapper

    Generate high-resolution maps of water quality and bathymetry

     

    Collect high-resolution data without getting your feet wet. The EcoMapper is a unique AUV (autonomous underwater vehicle) designed specifically for mapping water quality, water currents and bathymetry.

     

    YSI Buoy-Based Vertical Profiling System
     

    Vertical Profilers

    For watersheds, source water and reservoir monitoring, YSI Vertical Profiling Systems provide automated data collection and telemetry throughout a water column. These water quality profilers are available in 3 different deployment configurations, each featuring:

    • Rugged, non-corrosive winch and drive mechanism
    • Software for easy set-up, deployment, water quality analysis and export
    • User-selectable sample intervals

     

    YSI 2002 Galvanic DO Sensor for Pro Series
     

    2002 Pro Series Galvanic DO Sensor

    YSI 2002 Galvanic sensor for the Professional Plus and Pro20 DO instruments.

     

    YSI 2003 Polarographic DO Sensor for Pro Series
     

    2003 Pro Series Polarographic DO Sensor

    YSI 2003 Polarographic sensor for the Professional Plus and Pro20 DO instruments.

     

    YSI 5906 Screw-On Dissolved Oxygen Cap Membrane Kit
     

    5906 DO Cap Membrane Kit

    YSI 5906 screw-on cap dissolved oxygen membranes.

     

    YSI 5909 Screw-On Dissolved Oxygen Cap Membrane Kit
     

    5909 DO Cap Membrane Kit

    YSI 5909 screw-on cap dissolved oxygen membranes.

     

    YSI 5912 Screw-On Dissolved Oxygen Cap Membrane Kit
     

    5912 DO Cap Membrane Kit

    YSI 5912 screw-on cap dissolved oxygen membranes for galvanic sensors.

     

    YSI 5913 Screw-On Dissolved Oxygen Cap Membrane Kit
     

    5913 DO Cap Membrane Kit

    YSI 5913 screw-on cap dissolved oxygen membranes for galvanic sensors.

     

    YSI 5914 Screw-On Dissolved Oxygen Cap Membrane Kit
     

    5914 DO Cap Membrane Kit

    YSI 5914 screw-on cap dissolved oxygen membranes for galvanic sensors.

     

    YSI Pro Plus BOD/DO Lab and Field Kit, 4-meter, US
     

    603167 Pro Plus 4-Meter BOD/DO Lab and Field Kit US

    Pro Plus meter, BOD probe, 4-meter cable with Polarographic DO, Lab dock, US power supply, carrying case, cable management kit

     

    YSI Pro20 Lab and Field Kit, 4-meter, US
     

    603169 Pro20 4-Meter Lab and Field Kit Polarographic US

    Pro20 meter, BOD probe, 4-meter cable with Polarographic DO, Lab dock, US power supply, carrying case, cable management kit

     

    YSI Pro20 Field Kit, 4-meter, Galvanic DO
     

    603170 Pro20 4-Meter Field Kit Galvanic

    Pro20 meter, 4-meter cable with Galvanic DO probe, carrying case, cable management kit

     

     YSI Pro20 Field Kit, 4-meter, Polarographic DO
     

    603171 Pro20 4-Meter Field Kit Polarographic

    Pro20 meter, 4-meter cable with Polarographic DO probe, carrying case, cable management kit

     

    YSI Pro20 Field Kit, 10-meter, Galvanic DO
     

    603172 Pro20 10-Meter Field Kit Galvanic

    Pro20 meter, 10-meter cable with Galvanic DO probe, carrying case, cable management kit

     

    YSI Pro20 Field Kit, 10-meter, Polarographic DO
     

    603173 Pro20 10-Meter Field Kit Polarographic

    Pro20 meter, 10-meter cable with Polarographic DO probe, carrying case, cable management kit

     

    YSI Pro2030 Field Kit, 4-meter, Polarographic DO
     

    603174 Pro2030 4-Meter Field Kit Polarographic

    Pro2030 meter, 4-meter cable with conductivity built-in and Polarographic DO probe, carrying case

     

    YSI Pro2030 Field Kit, 4-meter, Galvanic DO
     

    603175 Pro2030 4-Meter Field Kit Galvanic

    Pro2030 meter, 4-meter cable with conductivity built-in and Galvanic DO probe, carrying case, cable management kit

     

    YSI Pro2030 Field Kit, 10-meter, Polarographic DO
     

    603176 Pro2030 10-Meter Field Kit Polarographic

    Pro2030 meter, 10-meter cable with conductivity built-in and Polarographic DO probe, carrying case, cable management kit

     

    YSI Pro2030 Field Kit, 10-meter, Galvanic DO
     

    603177 Pro2030 10-Meter Field Kit Galvanic

    Pro2030 meter, 10-meter cable with conductivity built-in and Galvanic DO probe, carrying case, cable management kit

     

    YSI Pro Plus Field Kit, 4-meter, Galvanic DO
     

    603178 Pro Plus 4-Meter Field Kit Galvanic

    Pro Plus meter, 4-meter cable with Galvanic DO probe, carrying case, cable management kit

     

    YSI Pro Plus Field Kit, 4-meter, Polarographic DO and Conductivity
     

    603180 Pro Plus 4-Meter Field Kit Polarographic and Conductivity

    Pro Plus meter, 4-meter cable with conductivity built-in and Polarographic DO probe, carrying case, cable management kit

     

    YSI Pro Plus Field Kit, 10-meter, Polarographic DO and Conductivity
     

    603182 Pro Plus 10-Meter Field Kit Polarographic and Conductivity

    Pro Plus meter, 10-meter cable with conductivity built-in and Polarographic DO probe, carrying case, cable management kit

     

    YSI Pro Plus Field Kit, 4-meter, Polarographic DO and pH
     

    603184 Pro Plus 4-Meter Field Kit Polarographic and pH

    Pro Plus meter, 4-meter cable with Polarographic DO probe, field pH probe, carrying case, cable management kit

     

    YSI Pro Plus Field Kit, 10-meter, Polarographic DO and pH
     

    603186 Pro Plus 10-Meter Field Kit Polarographic and pH

    Pro Plus meter, 10-meter cable with Polarographic DO probe, field pH probe, carrying case, cable management kit

     

    YSI Pro Plus Field Kit, 4-meter, Polarographic DO, Conductivity and pH
     

    603190 Pro Plus 4-Meter Field Kit Polarographic DO, Conductivity and pH

    Pro Plus meter, 4-meter cable with conductivity built-in and Polarographic DO probe, field pH probe, carrying case, cable management kit

     

    YSI Pro Plus Field Kit, 4-meter, Galvanic DO, Conductivity and pH
     

    603191 Pro Plus 4-Meter Field Kit Galvanic DO, Conductivity and pH

    Pro Plus meter, 4-meter cable with conductivity built-in and Galvanic DO probe, field pH probe, carrying case, cable management kit

     

    YSI ProODO 4-Meter Field Kit
     

    603192 ProODO 4-Meter Field Kit

    ProODO meter, 4-meter cable with optical DO, carrying case

     

    YSI ProODO 10-Meter Field Kit
     

    603193 ProODO 10-Meter Field Kit

    ProODO meter, 10-meter cable with optical DO, carrying case

     

    YSI ProODO Lab and Field Kit, 4-meter, US
     

    603194 ProODO 4-Meter Lab and Field Kit US

    ProODO meter, ProOBOD probe, 4-meter cable with optical DO, Lab dock, US power supply, carrying case

     

    YSI ProODO Lab and Field Kit, 4-meter, International
     

    603199 ProODO 4-Meter Lab and Field Kit International

    ProODO meter, ProOBOD probe, 4-meter cable with optical DO, Lab dock, International power supply, carrying case

     

    YSI Pro Plus BOD/DO Lab and Field Kit, 4-meter, International
     

    603221 Pro Plus 4-Meter BOD/DO Lab and Field Kit International

    Pro Plus meter, BOD probe, 4-meter cable with Polarographic DO, Lab dock, International power supplies, carrying case, cable management kit

     

    YSI Pro Plus Field Kit, 4-meter, Polarographic DO, Conductivity and pH/ORP
     

    603223 Pro Plus 4-Meter Field Kit Polarographic DO, Conductivity, and pH/ORP

    Pro Plus meter, 4-meter cable with conductivity, Polarographic DO probe, field pH, field ORP probe, carrying case, cable management kit

     

     YSI Pro Plus Field Kit, 4-meter, Galvanic DO, Conductivity and pH/ORP
     

    603224 Pro Plus 4-Meter Field Kit Galvanic DO, Conductivity, and pH/ORP

    Pro Plus meter, 4-meter cable with conductivity, Galvanic DO probe, field pH, field ORP probe, carrying case, cable management kit

     

     

    605952 5400 Monitors DO/Temperature Cable

    Galvanic dissolved oxygen cable for the 5400 multi-DO aquaculture monitors.

     

     

    605953 5400 Monitors DO Cable

    Galvanic dissolved oxygen cable for the 5400 multi-DO aquaculture monitors.

     

    YSI ROX Dissolved Oxygen Probe
     

    6150 ROX ® Optical Dissolved Oxygen Sensor (6-Series)

    Rugged and reliable optical dissolved oxygen sensor used with 6-Series water quality sondes.

     

    YSI ROX Optical Dissolved Oxygen Probe - Copper Antifouling
     

    6450 Anti-fouling ROX ® Optical Dissolved Oxygen Sensor (6-Series)

    Copper-alloy anti-fouling optical dissolved oxygen sensor used with 6-Series sondes.

     

    YSI Rapid Pulse Dissolved Oxygen Sensor
     

    6562 Rapid Pulse Dissolved Oxygen Sensor

    Obtain unprecedented accuracy and reliability with the YSI 6562 Rapid Pulse™ Dissolved Oxygen Sensor.

     

    YSI IQ SensorNet FDO® Sensor
     

    IQ SensorNet FDO® 700 Series IQ Sensors

    Digital FDO® optical dissolved oxygen sensors

     

    YSI IQ SensorNet TriOxmatic® Sensor
     

    IQ SensorNet TriOxmatic® 700 Series IQ Sensors

    Digital TriOxmatic® electrochemical dissolved oxygen sensors

     

    YSI OBOD Optical Dissolved Oxygen Sensor Cap for BOD Probe
     

    OBOD Optical DO Sensor Cap

    YSI OBOD replacement optical dissolved oxygen screw-on sensor cap for the BOD probe.

     

    YSI ODO Optical Dissolved Oxygen Sensor Cap (shown on sensor)
     

    ODO Optical DO Sensor Cap

    YSI ODO replacement optical dissolved oxygen screw-on sensor cap.

     

    YSI ProOBOD Optical BOD Probe with ProODO in Lab
     

    ProOBOD Self-Stirring Optical BOD Probe

    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.

     

     

    YSI Optical, Luminescent BOD Technology Webinar
     

    YSI Optical BOD Webinar - Introducing Optical BOD Technology


    Archived Webinar:
    YSI Optical BOD Webinar - Introducing Optical BOD Technology


    Original Broadcast: October 21, 2010 —2:00 - 2:30 PM EDT


    Join us to learn about optical BOD technology.  This webinar will focus on optical dissolved oxygen technology and the new ProOBOD probe from YSI.

    If you conduct BODs, this webinar is for you!

     

    Dissolved Oxygen Technologies Webinar 2
     

    Dissolved Oxygen Technologies - Part 2: Getting the Best DO Data


    Archived Webinar:
    Email Patrick Higgins to request a copy of this webinar.


    Original Broadcast: June 23, 2009 —2:00 - 3:00 PM EDT

    Getting best DO data: understanding required calibration and maintenance.

     

    Dissolved Oxygen Technologies Webinar 1
     

    Dissolved Oxygen Technologies - Part 1: Selecting the Right Sensor


    Archived Webinar:
    Email Patrick Higgins to request a copy of this webinar.


    Original Broadcast: April 16, 2009 —1:00 - 2:00 PM EDT

    Choosing right DO sensor: understanding optical, galvanic, polarographic technologies.

     

     

     

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