45 70th ANNIVERSARY Y S I I N T E GRATED SYSTEMS & S E R V I C E S D U R A B LE • RELIABLE • ADV A N C E D Xylem Merger In YSI’s 63rd year, ITT Corporation purchased YSI and spun off its water-related businesses into a new publicly traded company, Xylem (XYL). Handhelds & Systems YSI develops the Professional Series of handhelds and launches its Integrated Systems & Services division, which builds custom monitoring systems for clients. EXO YSI released its new industry- leading sonde platform, EXO. Tens of thousands of these instruments continue to be used around the world today. YSI releases: HYCAT Automated Surface Vehicle (ASV), ProSample Autosampler, and ProSolo Handheld. DIGITAL SAMPLING Combining the sensor technology from EXO with the portability of the Professional Series, YSI developed the ProDSS. These meters are used in a variety of environmental applications globally. 2011 2014 2007 2012 2018 Take a look at the evolution of our instruments over the years, responding to the changing needs of our customers and the environments they measure. YSI made a strategic decision to develop products for water quality and velocity applications in outdoor, environmental applications. The1990'stothePresent