... is designed for measuring single phase active energy. 1. PRODUCTS INTRODUCTION:This single phase electronic energy meter ... data of this watt-hour meter is easy to read by infrared of Hand hold device. Its ... the demand of GB/T17215-2002 1 2 class static A.c watt-hour meter,GB/T17883-1999 ... active total electricity quantity2) Time and data :a) Clock:a) Second,minute,hour,week,day,month,yearb) Recognized ...