YSI EXO Sondes provide accurate data during long-term deployments with customizable options to meet any water quality monitoring challenge.
Learn more
Wherever your water quality sampling leads you, trust YSI's rugged, portable Pro Series handhelds to provide accurate data.
Innovative technology and customizable solutions make it easier to collect and share water quality, flow, and weather data with real-time telemetry.
Sound science: SonTek instruments collect precise water velocity and discharge data with confidence.
Optimize your process with advanced solutions for continuous monitoring—designed to enhance precision, efficiency, and water quality management.
Xylem is a leader in laboratory solutions, providing innovative equipment and expert support to help you analyze and solve your greatest challenges.
GxP-compliant multiparameter measuring device for up to four simultaneous measurements
Multiparameter Water Quality Meter with Changeable Single Sensor Port
Request Pricing
Phycocyanin - Freshwater
$3,915.00
Autonomous Surface Vehicle
A Pontoon Platform for In-Situ Characterization of Environmental Systems
EXO1S Multiparameter Water Quality Sonde Batteryless Conversion Service (7 sensor ports including a central wiper port)
$2,385.00 - $3,100.00
View New ProductsShop Now
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.
More Videos >
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.
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.
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.
Water Blogged
Keep Reading
Ask a QuestionConsult an Expert
Multiparameter Water Quality Sonde (7 sensor ports, including a central wiper port)
$7,090.00 - $8,175.00
Modular water quality system for a complete sensor network allows for connection of 20 sensors
Two Chemistry Online Monitor & Control System
Three channel benchtop multiparameter instrument with wireless capability
$1,920.00
Self-contained Continuous Flow Bubbler with Fully Integrated Pressure Sensor
Monitoring Made Mobile
IQ SensorNet Orthophosphate Analyzer
Optical Dissolved Oxygen, Conductivity, and Salinity Digital Handheld Instrument. Meter Only.
$850.00
pH or mV (ORP) and Temperature Handheld Instrument. Meter Only.
$517.00
Dissolved Oxygen, pH/mV and Temperature Handheld Instrument. Meter Only.
$795.00
Mission: Water is an annual publication that brings awareness to our most precious resource—water. It serves as a platform to celebrate our customers and other environmental advocates making a difference in our changing world. Download the latest issue today!
Keep Reading >
Learn all about EXO Sondes from our team of experts in this free series detailing how to setup, calibrate, maintain, store, and troubleshoot your EXO Sonde. These short, how-to videos are available on-demand so you can go at your own pace and only watch the videos you need.
Get Started >
Need training on instrumentation, but can't make it to one of our in-person workshops? Get quick, easy access to on-demand educational resources, earn CEU credit, and enhance your understanding of important topics from our experts.
Learn More >
The intuitive YSI Sonde monitoring system selector will provide you with a recommendation for the multiparameter 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.
Let's Get Started >
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 >
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.
Find Out Now >
Our technology experts are available to help with everything from instrument selection to data management. We 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.
Request a Consultation
Our laboratory experts are available to help with everythign from instrument selection to application support for various applications. Xylem Lab Solutions brands are excited to offer free virtual consultations for your next facility project or upgrade. Our dedicated aplications engineers and experts identify the best technology for your application.
Get Advice
Our municipal experts are available to help with everything from instrument selection to application support for wastewater and drinking water treatment. 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.
Talk to the Experts