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
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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.

Please, mind that only logged in users can submit questions

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YSI EXO3 Multi-Parameter Water Quality Sonde
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EXO3 multi-parameter water quality sonde with 4 sensor ports & 1 wiper port, no depth sensor
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EXO3 multi-parameter water quality sonde with 4 sensor ports & 1 wiper port, 10m depth sensor
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EXO3 multi-parameter water quality sonde with 4 sensor ports & 1 wiper port, 100m depth sensor
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EXO3 multi-parameter water quality sonde with 4 sensor ports & 1 wiper port, 250m depth sensor
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