VZOR Ltd, a Russian research-and-production enterprise, was founded on September 09, 1994. The profile of the company is development and production of instruments for analytical control of aquatic environment in thermal and nuclear power industry, ecology and other industries. What we have always been striving for is to have our users convinced that MARK and VZOR trade marks always come together with the guaranteed quality of products and services. Analyzers MARK are successfully used on power plants, centers of ecology control, laboratories of different profile of Russia, countries of CIS, Eastern Europe and Middle East.