A universal electrochemical analyzer for environmental monitoring has been developed. The analyzer is designed for efficient automated determination and control of quality and safety indicators of environmental objects of current regulatory standards, such as concentrations of toxic metals, organic toxins, impurities. The analyzer provides simultaneous performance of a number of electrochemical techniques for electroanalytical experiments. A new scheme of the universal measuring system has been developed, original algorithms of instrumental processing of electrochemical sensor signals have been proposed and applied. The application area of the electrochemical analyzer is the bodies of state and industrial environmental control and product certification.