... DD862 Single phase meter 1:CE,CCC,ISO9001,14001,IEC 2: 5+1 or 5 digit register 3:20 years experience 4:OEM GeneralThe DD862 ... type single-phase watt-hour meter is a kind of induction type meter,which is applicable to measure ... 50Hz and power loss in electrified-wire netting. The meter has novel design, rational structure and features of highoverload, ...