EXO Modbus Signal Output Adapter

EXO Multiparameter Sondes

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

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Note: This product is intended for use in a SCADA system.
Requires an EXO Sonde and flying lead cable to function.

This adapter converts an EXO sonde signal into a Modbus protocol over RS-232 or RS-485.
For DCP applications with a data logger, please see our EXO DCP Adapter.

  • Overview

    Delivering quality data where and when you need it most.

    Introducing the EXO Modbus Signal Output Adapter from YSI, designed with and engineered for compatibility with the EXO sonde platform. As technology continues to develop at record pace, it’s more critical than ever to have a flexible sonde that can keep up.

    A fundamental part of the EXO Sonde platform is the ability to adapt its communication output to match different monitoring applications. Simply configure a sonde with this adapter and the instrument is then compatible with industrial SCADA systems, or PCs and tablets with USB connectivity. Converts the proprietary signal from an EXO Sonde into a Modbus protocol over RS-232 or RS-485.

    Discover the benefits of EXO Adapters:

    Maintenance Special
    Integrate your EXO sonde into numerous monitoring
    applications without the hassle of purchasing all new hardware.

    YSI Integrated Systems
    Perform firmware updates to your sonde and
    sensors to optimize performance over time.​

    YSI Integrated Systems
    View your sonde’s logging status at a glance, with
    integrated LED indicators built into your monitoring station.

    EXO University
    Setup and configure instrumentation without it leaving
    the water, using USB or passthrough connections.​

    USB Passthrough mode: 
    Communicate directly with an underwater sonde, via USB through an EXO adapter, without having to disturb the Sonde.


    YSI Integrated Systems

    The EXO adapters are a key component of a complete, unattended long-term water quality monitoring system from our Integrated Systems & Services group.


  • Specifications
    Connectivity / Communications Modbus protocol over RS-232 or RS-485
    Desktop Software Compatible KOR Software for the EXO Platform
    Equipment used with An EXO Sonde and an EXO Flying Lead Cable
    Operating Temperature –40°C to +60°C
    Power Supply Voltage: 9 – 16 VDC or USB 5 VDC, Current Draw Adapter: ~20mA typical (@12 VDC), Current Draw Sonde: ~sleep 0.25mA reading and 100mA during operation, Max Net Current Draw for Systems: ~200mAmps (@12 VDC)

    L= 3.5", W= 3.5", H= 1.5" (89cm x 89cm x 38cm)

    Storage Temperature –50°C to +80°C

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EXO DCP Signal Output Adapter 2.0

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