The group's principal activities are to manufacture and market electrodeionization water treatment devices for high purity water applications for both industrial and commercial users. Its operations are conducted through two wholly owned subsidiaries: electropure edi inc and micro imaging technology. The group has two product segments: water purification and fluid monitoring. The water purification segment produces water purification modules for sale to manufacturers of high purity water treatment systems. The fluid segment is developing a technology that is anticipated to enable real time identification of contamination in fluids. The group operates in the United States, Asia, Europe and other foreign countries.