1,Prepaid smart meter 2,Advanced RF card and SMT techniques 3,Mechanical ... LCD display 4,Accurate measuremed General Introduction IC Card Prepaid Smart Meter adopts advanced RF card and SMT techniques, with double ... performance, low energy consumption and easy to install.One meter with one IC card for one consumer, use power ... JAPAN) / Valve Driving Chip-ROHM Corp. (JAPAN) IC Card Prepaid Smart Meter