Description:   DDS238-1 230V Rail-Type Electronic Type Mini Electricity Meter Counter Display   Specification:   STANDARD IEC : 6 Nominal voltage: 230V Basic current(lb) 5A Maximum current: 32A Minimum current: 0.02A Frequency: 50Hz or 60Hz Consumption: <2W\/10 VA Accuracy class: 1 Display: mechanical 5+digits LCD 5+2 or 6 +1 digits Interface : open collector output (so) 18~27V 27MA Impulses: impulse length>=30ms           Package includes:    1 x Electric energy meter 1 x User Manual   Details pictures: