... and accuracy 3)Prepaid, Remote control 4)Customization Prepaid Smart electrical meter 3 phaseThis smart energy meter is provided with pulse ... ) is designed for measuring active energy in single-phase alternating current power grids by connecting up resident power supply system. The ... 110 V, 220V, 230V, 240VReference frequency: 50Hz or 60HzBasic Current (Maximum Current) 1.5(6), 5(20),10(40), 10(60),20 ...