Prepaid Watt-hour Meter
Prepaid watt-hour meter, or prepayment watt-hour meter, IC card watt-hour meter, is a kind of watt-hour meter which is used to measure and control the power consumption in an electrical network. It has regular measuring functions as other watt-hour meters. Its feature is that the user of prepaid meter has to prepay the money before using the power. As a new type of watt-hour meter, it is widely used in domestic and industrial applications for adjusting the power load, commercializing electricity and easy charging of the electricity bill.