It makes precise measurements between 50V - 300V (3x220/380V or 3x230/400V). Current transformers used as measuring elements are guaranteed to maintain their sensitivity for a lifetime. In addition, it has the advantages of negligible energy consumption and isolation from the network compared to other measuring elements. Thanks to the Lithium battery with a minimum life of 10 years, time and date information is protected against power outages. It has a memory that can store information for over 100 years without requiring any energy. It has an LCD display that shows the amount of energy consumed according to tariff zones and fault notifications. It has the feature of displaying on the LCD, with a code and notification, battery weakness, real time clock corruption, interruption of one of the phases, front cover and terminal cover opening interventions. It has an optical port feature that will provide TS EN 62056-21 communication protocols to perform all kinds of communication programming operations. It has the features of dividing the day into 8 separate time periods (optionally 32), programming weekdays, Saturdays and Sundays separately (seasonal and holiday tariffs as an option) and measuring the energy consumed in 4 tariffs (16 tariffs as an option).