Sampling and Monitoring Instruments for Water Quality, Level, and Solutions.

New Products

ProSwap Digital Water Quality Meter

Multiparameter Water Quality Meter with Changeable Single Sensor Port

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EXO Total Algae PC Smart Sensor

Phycocyanin - Freshwater

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HYCAT

Autonomous Surface Vehicle

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EMM350 Pisces

A Pontoon Platform for In-Situ Characterization of Environmental Systems

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EXO1S Customized Multiparameter Sonde

EXO1S Multiparameter Water Quality Sonde Batteryless Conversion Service (7 sensor ports including a central wiper port)

$2,385.00 - $3,100.00

One Team on a Mission

Spanning over 70 years, YSI, a Xylem brand has a customer-focused legacy of developing innovative,
environmentally-essential technology. Our customers are more than people who use our instruments -
they are climate first responders, environmental stewards, and researchers who are passionate about
our world along with scientific integrity.

Learn More About YSI

YSI ProDSS | When the Environment Demands It

Designed for use in applications such as surface water, groundwater, coastal/estuarine, aquaculture, and wastewater, the rugged and reliable ProDSS allows for the measurement of water quality parameters with digital sensors - when the environment demands it.

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YSI Systems | Integrated Systems & Services

For more than 20 years YSI Systems has been demonstrating how defensible data can change your world. From autonomous HydroMet monitoring systems to hardware installation, design, and maintenance. We go beyond equipment sales to providing you with complete solutions including installation services, training, design, engineering, maintenance, construction, and complete project delivery.

IQ SensorNet Wastewater Monitoring & Control | City of Dayton, OH | YSI

The City of Dayton, OH utilizes the YSI IQ SensorNet to lower preventative maintenance, optimize process, meet permits, and save money in the long run.

YSI WaterLOG Amazon Water Level Bubbler

The Amazon water level bubbler is the most advanced water level and long-term flow monitoring system available. The Amazon is a must have for bubblers and water level projects.

The True Cost of Data | What’s Below the Surface?

09/11/2024

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Water Blogged 

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Featured Products

EXO2 Multiparameter Sonde

7-Port Multiparameter Water Quality Sonde

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IQ SensorNet 2020 3G Controller

Modular water quality system for a complete sensor network allows for connection of 20 sensors

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2900M Online Monitor & Control System

Two Chemistry Online Monitor & Control System

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HYCAT

Autonomous Surface Vehicle

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MultiLab 4010-3W

Three channel benchtop multiparameter instrument with wireless capability

$1,920.00

Amazon Bubbler

Self-contained Continuous Flow Bubbler with Fully Integrated Pressure Sensor

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EXO GO

Monitoring Made Mobile

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IQ SensorNet Alyza Analyzer PO4

IQ SensorNet Orthophosphate Analyzer

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ProSolo Digital Water Quality Meter

Optical Dissolved Oxygen, Conductivity, and Salinity Digital Handheld Instrument. Meter Only.

$850.00

Pro10 pH or ORP Instrument

pH or mV (ORP) and Temperature Handheld Instrument. Meter Only.

$517.00

Pro1020 Dissolved Oxygen and pH or ORP Instrument

Dissolved Oxygen, pH/mV and Temperature Handheld Instrument. Meter Only.

$795.00

EXO1S Customized Multiparameter Sonde

EXO1S Multiparameter Water Quality Sonde Batteryless Conversion Service (7 sensor ports including a central wiper port)

$2,385.00 - $3,100.00

Determine The HAB Monitoring Solution For You

The intuitive YSI HAB (Harmful Algal Bloom) monitoring system selector will provide you with a recommendation for the HAB monitoring solution that best fits your requirements! Your answers to the selector questions will help you think through your options, and will help YSI to get you a solution as fast as possible. You might even be able to buy your solution online TODAY!

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LOOKING FOR THE BEST INSTRUMENT?

Finding the right handheld water quality meter should be easy. Just take our short quiz and the intuitive product selector will provide you with an immediate recommendation based on your needs! From the single-parameter, analog Pro10 to the multiparameter, all-digital ProDSS, we've got you covered.

Choose the Right Handheld

What is the Best Titrator for You?

YSI offers a full range of titration solutions to accommodate your titration requirements. Manual or Automated? We can help! Our titrators, and compatible accessories, efficiently determine concentration levels and quickly detect equivalency points accurately.

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What is The Floating Platform for Your Monitoring Needs?

An Integrated System from YSI can be built for almost any water monitoring application. Reveal water quality in the entire water column with a vertical profiler, configure your own unique data buoy or TurnKey system for real-time data collection.

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GET HELP ON YOUR NEXT ENVIRONMENTAL PROJECT

Our technology experts are available to help with everything from instrument selection to data management. YSI, SonTek, Aanderaa, and the Xylem family of brands now offer free virtual consultations for your next water or environmental-related project. Our dedicated application engineers and experts identify the best instrumentation and data collection for your project.

Consult Environmental Experts

FREE VIRTUAL CONSULTATIONS FOR YOUR LABORATORY APPLICATIONS

Our laboratory experts are available to help with everything from instrument selection to application support for various applications. YSI, OI Analytical, and the rest of our Xylem Lab Solutions brands are excited to offer free virtual consultations for your next facility project or upgrade. Our dedicated application engineers and experts identify the best technology for your application.

Consult Laboratory Experts

CONSULT THE MUNICIPAL WATER EXPERTS

Our municipal experts are available to help with everything from instrument selection to application support for wastewater and drinking water treatment. YSI and the Xylem family of brands now offer free virtual consultations for your next facility project or upgrade. Our dedicated application engineers and experts identify the best system for your needs.

Consult Municipal Experts

A PRACTICAL GUIDE TO pH MEASUREMENT - THE pH HANDBOOK

The YSI pH Handbook is a practical guide to pH in the lab or field. It contains helpful tips and recommendations to ensure you take accurate and repeatable pH measurements. This Handbook will help you understand which technology is suitable for your application, maintain the sensors properly, and gather the best pH data possible.

Download pH Handbook

LOOKING TO PERFECT YOUR TITRATIONS?

Want to know what titration is and why it's important? Look no further; we can help. Our Titration Handbook is the perfect download for any user, from beginner to expert! Inside you'll find everything about titration methods and various chemical analysis applications. This Handbook will help you understand which technology is right for you and help you gather the best titration data possible!

Download Titration Handbook

THE DISSOLVED OXYGEN HANDBOOK - WE KNOW D.O.

The YSI Dissolved Oxygen Handbook is a practical guide to DO in the lab or field. It contains helpful tips and recommendations to ensure you take accurate and repeatable DO measurements. Understanding which technology is suitable for your application, maintaining the sensors properly, and gathering the best DO data will ensure You Know DO!

Download Dissolved Oxygen Handbook

WANT TO KNOW MORE ABOUT PHOSPHORUS? - DOWNLOAD THE COMPLETE GUIDE.

YSI has a long history of helping municipal wastewater treatment facilities meet their treatment goals – from developing the first portable dissolved oxygen meter and manufacturing the golden standard for BOD probes to today’s IQ SensorNet system of sensors for water quality monitoring and control.

Download Phosphorus Handbook

HOW WATER QUALITY SENSORS WORK | ON-DEMAND WEBINARS

Our experts dive into the evolution of sensor technology and how they work. In this series, we dive into the following parameters: algae, turbidity, conductivity, pH AND ORP, and dissolved oxygen.

Watch the Webinars

YSI SHOP

Shop our innovative products and buy confidently with YSI. Our team is available to assist, and we have you covered with all the ordering information you need.

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REQUEST PRICING

Looking for a price quote on one or more of our products and accessories? Our knowledgeable team is ready to help you along every step of your projects and purchases.

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ASK A QUESTION

Do you have a support question you want to contact us with? Just fill out our simple form.

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