Humas is a technology-intensive company that consists of experts including the researchers who came from research institutes of Daedeok, Science Town, which is a Mecca for research and development activities in Korea, related to new materials and environmental technologies as well as professors of KAIST. Since after the company was founded, we have dedicated ourselves to the development of the water quality analysis technology and now take pride in our competitiveness that allows us to compete with global top-notch companies in the sector of water quality analysis technology. We developed a water analysis kit that consists of about 70 items to be used currently in the water quality analysis, as well as a transportable water quality analyzer, a desk top type water quality analyzer and a physical-chemical spectrophotometer for us to provide services for our customers. Recently, we developed also on-line devices related to water quality (A turbidity continuous measuring device, an automatic chlorine measuring device, as well as a automatic device for measuring nitrogen and phosphorus) to provide a one-stop service related to water quality.