Electric Energy Meter, watt-hour meter, Electrical Meter 1. High quality 2. 220V; 50Hz 3. 6400IMP/KW-H. DDS701 Single-phase Energy Meter, watt-hour meter, watt meter, electrical meterPackaging ... , high loading,low power consumption,and powerful anti-disturbing capability, its performances are completely conformed to GB/T17215-2002 standard.2. Specifications ...