

YSI is a developer and manufacturer of sensors, instruments, software, and data collection platforms for environmental water quality monitoring and testing. Reaching beyond our products, we build relationships with our customers through our dedicated customer service, including technical applications and service support.
Data sonde designed for in situ monitoring and profiling; ideal for long-term deployments requiring a complete water quality data record.
The ideal modular system for online wastewater monitoring for 1 to 4 sensors.
Expand your water quality monitoring to include hydrocarbons, oil or CDOM with YSI Sensor Adapter and Turner Cyclops-7 submersible sensors.
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Wastewater Treatment Plant Improves Efficiency with the IQ SensorNet
A Colorado wastewater treatment plant monitors ammonia and dissolved oxygen to improve their process efficiency....
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Advanced water-quality monitoring instruments for demanding environments March 12, 2012 -- YSI has used its long experience in water quality monitoring to develop the ultimate multiparameter sondes for challenging marine and freshwater conditions....
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Other YSI Divisions
YSI ISA - Instrumentos e
Servicios Ambientais
(Latin America)