EXO Platform EXO3 Multiparameter Sonde

SKU: 599503-00
Overview Documentation & Tools


Multiparameter Water Quality Sonde with 5 sensor ports (including a central wiper port), optional depth sensor, and battery compartment

EXO Multiparameter Sondes — the best-in-class platform for the highest quality data. EXO's dynamic range of smart sensors provide comprehensive multiparameter water quality data while SmartQC ensures proper calibrations and top sensor performance. You can be confident in your extended deployments thanks to EXO's tough materials and unmatched anti-fouling technology.

Instrument Only. Cables, probes/sensors, and accessories sold separately.

Product Features
  • Highest Data Quality - Onboard monitoring systems verify sensor operation
  • Multiparameter Monitoring - 5 universal ports for allow for any combination of smart sensors or the central wiper
  • Industry-leading Anti-fouling - Best-in-class wiper technology
  • Titanium Components - The toughest grade parts guarantee operation well into the future 
  • Seamless Integration - EXO can plug-and-play into marine, estuarine, freshwater, and groundwater monitoring systems


The parameters you need, without the features you don't!

Offering the greatest value of any sonde available on the market, EXO3 combines the maneuverability of the EXO1 with the powerful antifouling wiper of the EXO2.

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

Additional Benefits Only from EXO3

  • The best priced, highest-quality sonde for baseline water quality monitoring.
  • Flexibility to switch from continuous monitoring to spot sampling with a lighter, shorter form factor.
  • Integral SDI-12 communications makes it ideal for existing data collection platforms and installations. (Including replacement of 6-Series sondes.)

Smart Sondes and Sensors
Extremely versatile instrument, allowing the user to automatically configure a sonde with different sensor for different applications in minutes

Other Available Parameters

  • Absolute Pressure
  • Ammonia
  • Depth
  • DO% Local
  • Guage Pressure
  • nLF Conductivity
  • PAR
  • Resistivity
  • Salinity
  • Specific Conductivity
  • Total Dissolved Solids
  • Total Suspended Solids
  • Water Density

Tested in a variety of rigorous field conditions as well as lab conditions to ensure accuracy and response times

Monitor without Interruption
No matter which EXO sensors users select, other features of the sensors' design make them rugged and durable:

  • Wet-mateable connectors resist corrosion
  • Isolated components prevent short circuits
  • Welded housings and double o-rings prevent leaks
  • High-impact plastic and titanium resists breaking
  • Built-in antifouling systems protect data integrity
  • Low power consumption extends underwater deployment.

ISS_Support_Icon (1).png The EXO sondes are a key component of a complete, unattended long-term water quality monitoring system from our Integrated Systems & Services group.
EXO_University_Icon (1).png Learning a new water quality platform can be a challenging process. Accelerate through the learning curve with our on-demand training program. Join us at YSI University!

Available Options
SKU: 599503-00 - EXO3 Sonde with no depth sensor
SKU: 599503-01 - EXO3 Sonde with 10m depth sensor
SKU: 599503-02 - EXO3 Sonde with 100m depth sensor
SKU: 599503-03 - EXO3 Sonde with 250m depth sensor

Documentation & Tools

Documentation & Tools