1) DDS881electric energy meter 2)High reliability 3)CE,CB,ISO9001,14001 ... phase electronic energy meter is the newest power counting products in our country to measure single phase AD active energy with the ... anti-stealing electricity. In order to monitor and control active energy easily, it adopts testing signals with light-coupled ... ),20(80),30(100)Dimension: DDS881 electronic energy meter(KWH Meter)