ECOSTEL – electrochemical devices for generation of electrochemically activated solutions – anolyte and catholyte, general mineralization of which does not exceed 1.5 g/l. ECOSTEL is meant for use in food industry, medical establishments, public catering establishments. ECOSTEL is manufactured in various modifications satisfying particularized requirements. Depending on type the ECOSTEL devices are presented under the name of STEL-ECO-S and SUPERSTEL. Distinguishing feature of all ECOSTEL modifications is high degree of salt conversion that lies in the range of 90 to 98%. ECOSTEL generates anolyte of A, AN and ANK types with oxidants content of up to 600 mg/l and catholyte of K type with pH of more than 12 with productivity of 50 to 500 l/h of every solution. Further ISED technology development permits to widen its application scope and offer for practical use cost-effective, highly-efficient and safe technological processes of synthesis of pure gases: ozone, hydrogen, oxygen, chlorine dioxide, as well as concentrated solutions of sulfuric, hydrochloric, nitric acids, and concentrated solutions of sodium and potassium hydroxides.