EXO3 Multiparameter Sonde

EXO - State-of-the-art Water Quality Monitoring Platform

EXO, a state-of-the-art water quality monitoring platform, is designed to address the many challenges of collecting accurate field data in the natural environment. In this video you will learn about the EXO sondes and EXO's innovative features, including: Universal smart sensors; Expansive and high-performance sensor suite; and Extremely rugged design for deeper depths and longer deployments.

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5-Port Multiparameter Water Quality Sonde

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

  • Overview


    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.

    Key Benefits
    • High-accuracy sensors with on-board memory
    • Wireless communications
    • Seamless integration into marine, estuarine, freshwater and ground water monitoring systems

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

    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 deployments

    But that's just the beginning of the great benefits EXO3 has to offer:

    Maintenance Special
    The best priced, highest-quality sonde for
    baseline water quality monitoring.

     YSI Integrated Systems
    Flexibility to switch from continuous monitoring to
    spot sampling with a lighter, shorter form factor.

    YSI Integrated Systems
    Integral SDI-12 communications makes it ideal for existing data collection 
    platforms and installations. (Including replacement of 6-Series sondes.)

    EXO University
    Plug-and-play design with all existing EXO platform smart sensors,
    including Total Algae, fDOM, and Wiped Conductivity & Temperature.

    EXO University
    The best antifouling wiper in the industry, protecting your 
    sensors for up to 90 days in the harshest conditions.

    EXO-Factory-Service-Icon.png Add an EXO Factory Service Plan to your next sonde purchase and have the peace of mind that your new instrument is covered. Use today’s budget to protect your investment for years to come!

    YSI Integrated Systems

    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

    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!

  • Specifications
    Connectivity / Communications Sonde: Bluetooth wireless technology, RS-485, and integral SDI-12 Output Options with Adapters: USB, RS-232, or Modbus
    Depth Rating 0 to 250 m (0 to 820 ft)
    Desktop Software Compatible KorEXO
    Flow Cell Yes

    Fresh, sea or polluted water

    Memory 512 MB total memory; >1,000,000 logged readings
    Monitoring Yes
    Multiparameter Yes
    Operating Temperature -5 to 50 °C (23 to 122 °F)
    Power 2 Alkaline Batteries
    Sampling Yes

    Diameter: 7.62 cm (3.00 in)  Length: 58.67 cm (23.1 inc)

    Smart Sensors / Ports 5 sensor ports (4 ports available when central wiper in use) Peripheral ports: 1 power communication port
    Storage Temperature -20 to 80 °C (-4 to 176 °F). Exception: 0 to 60 °C (32 to 140 °F) for pH and pH/ORP sensors
    User Calibratable Yes
    Waterproof Yes
    Weight 2.00 kg (4.41 lbs) with a full payload of 4 probes, 1 wiper, and probe guard installed
  • Video

    EXO Sondes: Smart Ports - Smart Sensors

    In this demonstration, Tim Finegan (YSI Director of Environmental Monitoring) demonstrates the smart sensor technology of the EXO water quality sondes.

    EXO Multiparameter Sondes

    EXO advanced water quality monitoring platform for continuous field water quality measurements in challenging conditions.

    EXO Sondes: What's in the Box When it Arrives?

    In this unboxing video, Tim Finegan, YSI, shows you exactly what ships with every order of an EXO water quality monitoring sonde.

    EXO-University.com | On-demand Sonde Training

    Learning a new water quality platform can be a challenging process. Accelerate through the learning curve with EXO University!

You may also need

EXO Field Cable

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EXO Handheld Display

Enhanced interface for the EXO platform.

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Monitoring Made Mobile

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EXO Central Wiper

Anti-fouling Wiper for the EXO2 and EXO3 Platforms

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