Management of energy consumption and user information
It is used to measure 50Hz or 60Hz active energy consumption from single phase AC electricity
This type of meter is widely used in office building, shopping mall, residential, and public facility...
One meter has one card, fake card is not available
Double display
The meter can set alarming kwh quantity, indicated by LED flash and secondary notice user the energy notice the energy is low to avoid unnecessary loss
Data can be preserved for more than 10 years without power supply