Nizhni Novgorod Plant named after M. V. Frunze is one of the leading manufacturers of microprocessor electricity meters. These meters are suitable for separate installation as well as for integration into computer-aided systems of electric energy consumption controlling and measuring. The meters allow multi-tariff electricity consumption monitoring, fault recording and power independent data storage in two, tree and four wires grids. New models of meters have a special feature allowing to effect plastic card payments for the consumed amount of electric power. All meters comply with ISO standards and included into the State Register of Measuring Instruments.