DDSY223 single phase electronic prepayment watt-hour meter and adopt
micro-electronics techniques.
DDSY223 single phase electronic prepayment watt-hour meter and adopt
micro-electronics techniques. It is used for measuring rated frequency 50Hz
or 60Hz Its technique performance are completely conformed to national
standard GB/T17215-1998 and department standard JB/T8382-96.
Electronic Type Prepayment Watt-Hour Meter