Energy meter, KWH meter inductance type single-phase AC active energy watt-hour meter, it is used for measurin Energy meter watt hour meter, KWH metersDD862 type single-phase watt-hour meter, that is, inductance type single-phase AC active energy watt-hour meter, it is used for measuring active energy at single-phase AC power grid of 50Hz or 60Hz. It has many features such as original design, ...