Energy meter(energy meter, kwh meter) - DD862, DD28, D86 series - CCC,CE,ISO9000 Certificated - Hot seller types Energy meter(energy meter, kwh meter)Application:Single phase and three phase ... )A, and so on6. Type series for choice:(1) Single phase, three phase type meter(2) LED, LCD digital display type meter(3) Prepaid meter(4) Active meter ...