1 DIN module energy meter for active energy measurement in commercial and domestic applications. Besides energy, the counter can measure the main electrical parameters viewable via the digital display and through optional M-BUS communications. The device allows users to start/stop/reset the active energy partial counter. The counter is built according to EN50470-3 standard. The accuracy of the active energy fulfills class B requirements. The meter incorporates a back lit LCD display with clear and easily readable graphic symbols. Also includes seal-able terminal covers for added safety. The analysis of the MTBF values, the accurate selection of components and the reduction of the internal working temperatures together with strict production and control standards guarantee a product of excellent quality and a long lasting reliability.