Environmental Monitoring Systems (EMS)
Multi-parameter Water Quality Sondes
  • Sampling, Logging& Profiling

Integrated Systems & Services (ISS)
Environmental Monitoring Modules
  • Buoy& Floating Platforms, Profiling Systems, EcoMapper AUV

Multiparameter Sondes

EXO1 Water Quality Sonde


The EXO1 water quality sonde is a new YSI multiparameter instrument that collects data with up to four user-replaceable sensors and an integral pressure transducer for depth.


Smart Ports: Each sensor port on the sonde accepts any EXO water quality sensor and automatically recognizes it.


Sensor Options:

  • Conductivity and Temperature
  • Dissolved Oxygen (optical)
  • fDOM (Fluorescent Dissolved Organic Matter, surrogate for CDOM)
  • pH or pH / ORP
  • Depth (integral)
  • Total Algae (Dual-channel Chlorophyll and Blue-green Algae)
  • Turbidity


Data Collection Options:

  • Store onboard the sonde
  • Transfer data to DCP
  • Relay data to PC
  • Relay data to EXO Handheld
The EXO1 with  
  • 4 sensor ports
  • Integral pressure transducer
  • 1 peripheral port for power communication
  • Depth: 820 ft, 250 m


Medium Fresh, sea or polluted water
Temperature Operating
-5 to +50°C
-20 to +80°C

Bluetooth wireless technology; USB cable
RS-485, RS-232, SDI-12

Software KOR®
Dimensions Diameter
Length, no depth

1.85 in, 4.70 cm

25.50 in, 64.77 cm

1.42 kg, 3.15 lbs (batteries and sensors installed)

Power External
9 to 16.5 V DC
2 D-size alkaline batteries


Memory 512 MB; >1,000,000 logged readings


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