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In 2003 YSI was pleased to announce that Hydrodata Services would be joining the group as YSI Hydrodata. This combination of manufacturer and local service provider proved to be a very successful combination !
YSI Hydrodata was formed in 2003 to provide back up and service to our growing list of YSI water quality meter users in the UK and Europe. In 2005 YSI Hydrodata set up as the distribution partner for our sister company SonTek, manufacturers of acoustic doppler flow and velocity meters. In 2008 YSI Hydrodata became the first company to achieve MCERTS accreditation for our continuous water quality monitors, followed up in 2010 with the portable version. Since 2003 we have built a local knowledge base on our products through our customers and applications specialists who are able to assist with immediate service and response.
Following the acquisiton of YSI Incorporated, Ohio by Xylem Incorporated in 2011, YSI Hydrodata changed its name to Xylem Analytics UK Limited and is responsible for the sales, support and service of AADI, SonTek, WTW and YSI products in the UK & Ireland. Our local stock levels mean rapid delivery times and swift responses to enquires.

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CTD with GPS - CastAwayThe YSI Castaway CTD is the worlds first handheld castable instrument that provides instantaneous profiles of temperature, conductivity, salinity, depth and sound speed. Oceanographers, hydrologists, and surveyors now have the ability to quickly collect reliable data from any dock, bridge or boat. |
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9300 / 9500 - PhotometerWaterproof, rugged, easy to use photometers. The YSI 9300 and YSI 9500 are economical photometers in small packages for any application. These portable photometers allow you to easily take readings directly in the field for 100+ parameters. |

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Discharge and Velocity SurveysAt YSI Hydrodata we are very fortunate to have staff with intimate knowledge of the discharge measurement process and requirements, knowledge that has been passed over into the design of the instruments and knowledge available for you to use too. Whether looking to measure flow in rivers, streams or canals, SonTek hydrology instruments are renowned for their robustness, accuracy, ease of use and practicality. |

