Dkk-Toa Corporation manufactures and sells measuring instruments in Japan and internationally. It offers laboratory analytical instruments; analyzer for portable and boiler water, basic process, water and waste water treatment, and oil refineries; water quality analyzer and systems; ambient air / emission gas analyzers; and medical equipment. The company also engages in the maintenance and repairment of measuring equipment; and leasing of real estate properties. Dkk-Toa Corporation was incorporated in 1944 and is headquartered in Tokyo, Japan.