1) DDS881electric energy meter 2)High reliability 3)CE,CB,ISO9001, ... reliable stepping motors etc. Type DDS881 single phase electronic energy meter is the newest power counting products in our country ... divided current and divided voltage meter to drive stepping motors and counters add up energy degrees.Main technical parameter: ... (60),20(80),30(100)Dimension: DDS881 electronic energy meter(KWH Meter)