YSI EXO Water Quality Sondes
Monitoring Instruments for Demanding Environments

EXO offers a wide range of capabilities to those dedicated to monitoring natural aquatic environments such as oceans, estuaries, rivers, lakes, and groundwater.

EXO was designed to be extremely versatile, allowing the user to configure a sonde for different applications in minutes. The key to this versatility is the smart sensors and smart ports. Each smart port is identical and automatically recognizes any EXO sensor so sensor payloads are designed by the user.

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

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YSI EXO2 Water Quality Sonde
The EXO2 water quality sonde is a new YSI multi-parameter instrument that collects data with seven user-replaceable sensors, a central wiper to keep sensors clean of biofouling, and an integral pressure transducer for depth.

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EXO2s Customized Water Quality Sonde – 7 Sensor Ports
YSI’s best-in-class EXO2s, is built for spaces and places that can’t accommodate the EXO2. EXO2s is a customized, battery-less sonde that comes with the same warranty and capabilities as the EXO2.

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EXO3 Water Quality Meter – 5 Sensor Ports
EXO3 is a purpose-built sonde that for monitoring major water quality parameters that collects data with up to 5 user-replaceable sensors and integral pressure transducer for depth.

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YSI EXO Handheld Display
The new EXO Handheld display from YSI interfaces to EXO sondes and is designed for reliable field use in challenging environmental conditions. Log real-time data, calibrate sensors, set-up sondes for deployments, and transfer quarter quality data to a PC.

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YSI EXO GO Wireless Communication Device
EXO GO frees up your hands in the field. On-the-spot GPS coordinates and barometric pressure are viewed through the newest KorEXO Software running on both laptops and tablets. The device is IP-67 rated and highly ruggedized to withstand drops, drips, and dunks!

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YSI EXO NitraLED™ UV Nitrate Sensor Utilizing state-of-the-art UV LED technology, EXO NitraLED™ is an optical nitrate sensor designed for long-term, low-drift monitoring. Built-in corrections for natural organic matter and turbidity minimize interference in freshwater environments. NitraLED is compatible with EXO 2/3 model sondes.

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YSI 6-Series Multiparameter Sondes
for Long-term Monitoring

YSI’s upgraded 6-Series family includes versatile, multiparameter sondes designed for real-time environmental monitoring and extended deployment.

All YSI sondes optical sensors and rugged design for unattended monitoring. Seven V2 sondes are offered with sensor payloads ranging from 5-9 sensors and multiple memory and power options to accommodate many different applications. In addition to the sensor options, YSI software calculates up to five additional parameters.

YSI 6920 V2
Compact Data Sonde for Unattended Monitoring
The YSI 6920 V2 sonde is an economical water quality logging system, ideal for long-term in situ monitoring and profiling.

Real-time turbidity monitoring, dissolved oxygen monitoring, algae monitoring, and more.

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YSI 600OMS V2
Low-Cost Optical Monitoring System
Measure optical dissolved oxygen, chlorophyll, blue-green algae, rhodamine, or turbidity in combination with temperature, conductivity and depth. Designed for use in fresh, sea or polluted waters, the 600OMS V2 data sonde utilizes the field-proven YSI sensors and incorporates innovations in water quality sensor configuration such as a conductivity and temperature module that fits into the sonde body.

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Call 1.800.833.7958

YSI 6-Series Multiparameter Water Quality Sondes User Manual
For these models:
6600 V2 • 6600EDS V2 • 6920 V2 • 6820 V2 • 600 OMS V2 • 600XL • 600XLM • 600LS • 600R • 600QS

Geotech is a YSI Representative for the
6-Series and EXO Water Quality Sondes
For customers in Colorado, New Mexico, Utah and Wyoming

In addition to carrying these product lines, Geotech is a certified service center for the YSI 6-series and EXO line of products.

Our main office and service center, located in Denver, Colorado, puts us in close contact with customers in this region.