Xylem Analytics UK distributes AADI, SonTek, WTW and YSI 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 Xylem 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.


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.


EcoNet - Data-to-Web

Econet is a plug and play solution enabling users to see secure data from remote sites.

YSI - Model EcoMapper - Autonomous Underwater Vehicle (AUV)

The YSI EcoMapper is a one-man deployable, Autonomous Underwater Vehicles (AUV) designed to collect bathymetry and water quality data. The submarine-like vehicle follows a programmed course and employs sensors mounted in the nose to record pertinent information.


Discharge and Velocity Surveys

At 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.


YSI Hydrodata offers a complete package of installation services including: site surveys to assess suitability, highly trained engineers and application experts to advise on best practice.

Company details

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Industry Type:
Monitoring and Testing

Market Focus:
Globally (various continents)

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