The DDSY5558type single-phase electronic pre-paid watt-hour meter is developed on the bass of the excellent single-phase electronic watt-hour meter.It is a new type of IC pre-paid meter,which has such function as power metering,loadcintrol and custome information management.It is an ideal product when reforming electric-use system,achieving electrical energy to commercialize,setting charge and adjusting load on aiming to the single-phase electronic pre-paid watt-hour meter in the standard of GB/T 17215.321-2008Class1 and 2 StaticAC Active Watt-hour Meter and GB/T 18460-2001
Function and Feature
1.Active single-phase electric power metering,no subject to adjust in terms of long working
2.Each user responds to a card,well protect from forgery
3.Once the remaining electric power quality is approaching the alarming power quality,the digital tube should be lighted to remain user of timely purchasing;
4.Once the electric consumption available is out,it should be auto cut-off
5.Protect form power theft,and recording the information auto 
6.Auto cut-off for overload
7.Date-copying function make the electricity department easier manage
8.The meter has the feature of long-using-life.high-reliable
9.The IC card power selling control systemhsa the function as power selling and using control
10.ExpansibleRS485