YSI Hydrodata is a wholly owned subsidiary of YSI Inc, a manufacturer of
instruments, software, and data collection platforms for environmental
monitoring. YSI develops, manufactures and integrates instrumentation and
systems for measuring and monitoring water quality, level, and flow for
outdoor applications such as oceans, coasts, estuaries, groundwater, surface water, and aquaculture.
http://www.ysihydrodata.com
