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YSI, a Xylem brand
YSI Chlorine Analyzer
New Analyzer! Chlorine 3017M
Continuously measure chlorine in aquaculture and aquatic habitats with the YSI 3017M DPD Chlorine Analyzer. The 3017M features a low limit of detection, high accuracy, simplified maintenance, and two configurable alarm relays.
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Darrin Honious
Meet Darrin Honious
YSI's Aquaculture Expert
Need assistance or help selecting an instrument? Darrin has worked at YSI for over 20 years and is available to answer your aquaculture questions.
Contact Darrin!
Why Monitor For Dissolved Oxygen
Why Monitor for Dissolved Oxygen (DO)?
DO plays an important role in sustaining aquatic life. Learn why monitoring DO is vital for determining stable conditions in aquatic habitats.
Watch Now!
YSI ProSolo ODO Handheld
ProDIGITAL Handhelds-
Trade In & Save!
Is it time to upgrade your DO handheld? For a limited time, trade in any handheld system for a discount on the latest technology! (Offer valid in USA Only).
Upgrade Today!
YSI Continuous Monitoring
Easy Remote Monitoring:
YSI Monitors & Mobile App
Streamline water quality management with YSI's aquaculture monitors and the AquaViewer II app. Keep an eye on your facility 24/7, from anywhere!
Learn More!
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  YSI, a Xylem brand
1725 Brannum Lane
Yellow Springs, Ohio 45387