YSI EXO3 Multi-Parameter Water Quality Sonde

The YSI EXO3 is purpose-built for monitoring major water quality parameters, including pH, conductivity, temperature, turbidity and dissolved oxygen.

Features

  • Titanium sensors with wet-mateable, universal sensor ports
  • Biofouling protection with central wiper brush and copper-alloy accessories
  • Integral SDI-12 communications make it ideal for data collection platforms
Your Price Call
Stock Check Availability  

Modern and Efficient Design
The YSI EXO3 represents an advanced sonde platform that offers a wide range of capabilities to those dedicated to monitoring natural aquatic environments such as oceans, estuaries, rivers, lakes, and groundwater. With a highly efficient power management platform, robust construction, and chemistry-free anti-fouling system, the EXO3 allows accurate data collection for up to 90 days between service intervals.

Multi-Port Water Quality Sonde
The YSI EXO3 sonde includes four sensor ports and a central anti-fouling wiper option. Sensor (sold separately) parameters include:

  • Temperature
  • Conductivity
  • Depth
  • Dissolved oxygen
  • pH
  • ORP
  • Total algae (phycocyanin or phycoerythrin along with chlorophyll)
  • Turbidity
  • Fluorescent dissolved organic matter (fDOM)
  • Rhodamine WT
  • UV nitrate
  • ISE ammonium
  • ISE nitrate
  • ISE chloride

Outputs Four Calculated Parameters.

  • Salinity
  • Specific conductance
  • Total dissolved solids (TDS)
  • Total suspended solids (TSS)

Onboard Signal Processing and Memory
All EXO sensors are digital sensors with onboard signal processing and memory. Built-in sensor diagnostic and calibration data allow users to calibrate multiple sensors in one sonde and distribute them to various other sondes in the field. Wet-mateable connectors allow for swaps in wet conditions, while active port monitoring automatically detects each sensor and verifies operation.

EXO3 Specifications
Diameter: 7.62cm (3.00 in)
Length: 58.67cm (23.10 in)
Peripheral Ports: 1 power communication port
Sensor Ports: 5 (4 ports available when central wiper used)
3-Year Warranty: Sonde; handheld
2-Year Warranty: Cables; conductivity/temperature and optical sensors; electronics base for pH, pH/ORP, ammonium, chloride, and nitrate sensors
1-Year Warranty: Optical DO cap and replaceable reagent modules for pH and pH/ORP sensors
3-Month Warranty: Replaceable reagent modules for ammonium, chloride, and nitrate sensors
Weight: 2.00kg (4.41 lbs)

General Sonde Specifications
Battery Life: 60 days**
Computer Interface: YSIP via USB Signal Output Adapter (SOA) and Bluetooth
Output Options: SDI-12 native output; RS-232 & SDI-12 via DCP-SOA; Modbus & RS-485 via Modbus-SOA
Data Memory: 512 MB total memory; >1,000,000 Logged readings
Depth Rating: 0 to 250m (0 to 820 ft)
Sample Rate: Up to 4 Hz
Operating Temperature: -5 to +50°C (23 to 122°F)
Storage Temperature: -20 to +80°C (-4 to 176°F)

**Typically 60 days at 20˚C at 15-minute logging interval; temperature/conductivity, pH/ORP, DO, and turbidity sensors installed with central wiper that rotates once per logging interval on EXO3. Battery life is heavily dependent on sensor configuration.

  • (1) EXO3 sonde
  • (1) Probe guard
  • (1) Calibration cup
  • (1) Tool kit
  • (3) Port plugs
  • (2) D-cell alkaline batteries
  • (1) USB drive loaded with manual & KOR Software
Questions & Answers
Are the EXO Series sondes compatible with 6-Series sensors?
No, only EXO sensors can be used with EXO sondes.
Can this sonde be powered by the EXO Handheld Display?
Yes, the EXO Handheld Display can power any of the EXO sondes for up to 20 hours on a single charge.
Does the EXO3 sonde length listed in the specifications include the handle?
Yes, the noted length of the YSI EXO3 sonde (23.1 in/58.67 cm) includes both the handle (bailer) and the probe guard.
Did you find what you were looking for?

Select Options

  Products 0 Item Selected
Image
Part #
Description
Price
Stock
Quantity
YSI EXO3 Multi-Parameter Water Quality Sonde
599503-00
EXO3 multi-parameter water quality sonde with 4 sensor ports & 1 wiper port, no depth sensor
Request Quote
Check Availability  
YSI EXO3 Multi-Parameter Water Quality Sonde
599503-01
EXO3 multi-parameter water quality sonde with 4 sensor ports & 1 wiper port, 10m depth sensor
Request Quote
Check Availability  
YSI EXO3 Multi-Parameter Water Quality Sonde
599503-02
EXO3 multi-parameter water quality sonde with 4 sensor ports & 1 wiper port, 100m depth sensor
Request Quote
Check Availability  
YSI EXO3 Multi-Parameter Water Quality Sonde
599503-03
EXO3 multi-parameter water quality sonde with 4 sensor ports & 1 wiper port, 250m depth sensor
Request Quote
Check Availability  
  Accessories 0 Item Selected
Notice: At least 1 product is not available to purchase online
×
Multiple Products

have been added to your cart

There are items in your cart.

Cart Subtotal: $xxx.xx

Go to Checkout

In The News

From Assessment to Angler: Continual Research Ensures Lake Erie Remains a Beacon of Freshwater Fishing

Lake Erie is well known for its abundant recreational fishing. Anglers come from across the country to try their luck at the “walleye capital of the world” and search for other freshwater species, such as bass, perch, and steelhead trout.  As one of the world’s largest freshwater fisheries, much effort is made behind the scenes to maintain fishing opportunities for visitors to enjoy year after year, efforts that often go unnoticed by the public. One of the lake's most important economic and tourism centers is the city of Sandusky, home to the Sandusky Fisheries Research Station . As part of the Ohio Division of Wildlife, the unit serves as a base for assessing fish populations and managing harvest with partner agencies from around Lake Erie.

Read More

High Definition Stream Surveys: Informed Management in Local Waterways

When it comes to environmental monitoring, new stream survey methodologies have revealed a great deal about water quality and streambed conditions over time. Such information can be particularly important in leading restoration initiatives and prioritizing management decisions. Historically, stream surveys have been conducted at a single point along the stream, with data then extrapolated for miles up and downstream. However, Brett Connell, Hydrologist and Director of Sales at Trutta Environmental Solutions, started developing a more intensive stream survey format in his master's program in 2010 at the University of Tennessee.

Read More

Climate Change and Microplastics: Monitoring Lake Champlain

Most people go to Lake Champlain for its exceptional views and thrilling boating, but it’s also home to a wide variety of interesting aquatic research projects. From studying microplastics to thermal dynamics of the lake, Timothy Mihuc, director of the Lake Champlain Research Institute (LCRI) at the State University of New York at Plattsburgh (SUNY Plattsburgh), has spent his career studying aquatic ecosystems.  As an aquatic biologist, he’s the main investigator on Lake Champlain’s research studies while also managing their grants, employees, and their hands-on buoy work.  Over the years, LCRI has received a number of environmental grants that aid in its monitoring research.

Read More