6-Series Discontinuation

Best in Class Just Got Better

The tremendous success of the 6-series Sondes pushed the YSI team to take water quality monitoring to a new level.  YSI’s EXO Sondes launched in 2012, bringing significant advancements that ranged from enhanced sensor specifications to best-in-class antifouling.  The 20+ year 6-series technology is now obsolete, so we encourage users to make the transition to the superior EXO line. 

YSI is no longer selling any new 6-Series Sondes; however, we will continue to support the 6-Series product line as much as we can through the end of 2025. Review the full discontinuation and support schedule here.