YSI EXO2s Multi-Parameter Water Quality Sonde

EXO2s is a compact, batteryless sonde that comes with the same capabilities as the EXO2, and is ideal for specialized applications where external power is supplied.

Features

  • Ideal for spot sampling or attachment to data buoys, AUV's, drones, etc.
  • Smaller, lighter sondes can be deployed in tight spaces
  • A more budget-friendly EXO without alkaline batteries
Your Price Call
Stock Check Availability  

The YSI EXO represents the next generation of water quality instruments from YSI. The advanced sonde platform 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, EXO allows accurate data collection for up to 90 days between service intervals.

The EXO2s sonde includes six sensor ports and a central anti-fouling wiper option. Sensor 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, and ISE chloride. The sonde can also output four calculated parameters including salinity, specific conductance, total dissolved solids (TDS) and total suspended solids (TSS).

All EXO sensors are digital sensors with on-board signal processing and memory. Built-in sensor diagnostic and calibration data allows users to calibrate multiple sensors in one sonde and distribute 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.

EXO2s Specifications
Diameter: 7.62cm (3.00 in)
Length (with guard): 42.87cm (16.88 in)
Peripheral Ports: 1 power communication port; 1 auxiliary port for third-party sensors (future functionality; not active yet)
Sensor Ports: 7 (6 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: 1.06kg (2.34 lbs)

General Sonde Specifications
Power Requirement: 9-16 VDC
Computer Interface
: YSIP via USB Signal Output Adapter (SOA) and Bluetooth
Output Options: 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)

  • (1) EXO2s sonde
  • (1) Probe guard
  • (1) Calibration cup
  • (1) Tool kit
  • (4) Port plugs
  • (1) USB drive loaded with manual & Kor Software
Questions & Answers
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.

Please, mind that only logged in users can submit questions

Select Options

  Products 0 Item Selected
Image
Part #
Description
Price
Stock
Quantity
YSI EXO2s Multi-Parameter Water Quality Sonde
577502-00
EXO2s batteryless multi-parameter water quality sonde with 6 sensor ports & 1 wiper port, no depth sensor
Request Quote
Check Availability  
YSI EXO2s Multi-Parameter Water Quality Sonde
577502-01
EXO2s batteryless multi-parameter water quality sonde with 6 sensor ports & 1 wiper port, 10m depth sensor
Request Quote
Check Availability  
YSI EXO2s Multi-Parameter Water Quality Sonde
577502-02
EXO2s batteryless multi-parameter water quality sonde with 6 sensor ports & 1 wiper port, 100m depth sensor
Request Quote
Check Availability  
YSI EXO2s Multi-Parameter Water Quality Sonde
577502-03
EXO2s batteryless multi-parameter water quality sonde with 6 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

Not So Quiet Polar Night: Arctic Creatures Found to be Active During Dark Part of the Year

Most people need little more than a comfortable pillow, a blanket, and a dark room to drift off into a multi-hour snooze. Many researchers assumed that once plunged into darkness for about half the year during the polar night, most polar creatures would do the same: fall asleep and take a big nap for as long as the darkness lasted. But Jon Cohen, associate professor of marine sciences, school of marine science and policy, in the College of Earth, Ocean, and the Environment at the University of Delaware, wondered if that was true. Despite the technical challenges of monitoring biota in very low light conditions, Cohen and his team were determined to find out if krill, copepods, and other creatures were dozing off in the dark or seeking out prey, light, and each other.

Read More

Orange Stream Dreams: Monitoring Acid Mine Drainage and Watershed Health

Not many young people pondering careers come up with the words “acid mine drainage.” But Jen Bowman, Director of Environmental Programs at the Voinovich School at Ohio University, could not help but be fascinated by what she saw during her days as an Ohio University student collecting field samples. “My interest in acid mine drainage, and how it affects watersheds, goes way back to my undergraduate days,” she explains. “We saw firsthand how streams could be impacted by drainage from abandoned mines. Sometimes streams had such severe problems they turned orange. It was hard not to be struck by that. I was drawn in to the many associated challenges, keeping watersheds clean, and improving stream health.

Read More

Summer 2022 Environmental Monitor Available Now

Summer 2022 Environmental Monitor From the continuous monitoring occurring in the Susquehanna River Basin region of the United States to a volcanic crater lake in Costa Rica , this latest edition of the Environmental Monitor covers a variety of remote monitoring methods. Empowered by cloud data, researchers in Malaysia, Australia, the United Kingdom , the United States and elsewhere spent the year gathering data and publishing their findings to the public. Other topics include highlighting the work of science professionals that are dedicated to harnessing data. This edition showcases the diversity of science by featuring stories from a marine technician in Antarctica , an outreach specialist in Michigan , and researchers from across the world.

Read More