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.
Easy to use, pH or ORP, conductivity, salinity handheld for the field.
Collect data to 250 m with the advanced EXO2 sonde – six replaceable smart sensors and a central wiper to clean biofouling.
Digital NitraVis® UVVIS sensor for Nitrate and TSS with UltraClean technology.
YSI ISA - Instrumentos e