Welcome to YSI Hydrodata
Located in Letchworth, UK, YSI Hydrodata distributes YSI and SonTek instruments and monitoring systems, providing training, installation, service, repair and calibration support services in addition to a full range of rental products. We are a division of YSI Incorporated, a global business committed to sustaining the quality and viability of the Earth's water resources with the world's most accurate and reliable water quality and hydrology measurement technologies.
Featured Applications
As the world's population soars and water demand increases rapidly, water resources are under enormous pressure.
Pollution monitoring technology has advanced considerably & many options now exist for monitoring both diffuse & point source pollution.
Dredging can have a significant affect on water quality, lifting pollutants and suspended solids into the water column.
News Updates
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Water Quality is key to the success of Cardiff Bay Restoration 
Water quality has been a central theme in a redevelopment project that began with the creation of the Cardiff Bay Development Corporation in 1897....
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New CTD Monitoring Technology Helps Reveal Arctic Secrets 
A group of Arctic researchers has employed the latest monitoring technology to investigate the effects of climate change, by measuring temperature and salinity in the water column beneath surface ice....
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Support
Other YSI Divisions
YSI ISA - Instrumentos e
Servicios Ambientais
(Latin America)
Rental Specials
The EMM700 buoy is a medium-sized platform suitable for near-shore and inland water applications. It is designed around logging, sensors, and remote...
Econet is a web enabled remote monitoring and control system allowing the users to view data from any site anywhere in the world....
Upcoming Events
Event Calendar