*communication way can be customized from: GPRS/CDMA,EPON optical fibre communication,10/100 Bast T internet
*small size, low consumption, easy to install, reliable, no need maintenance
*collecting and storing energy value, day frozen energy value and balance date frozen energy value
*concentrator can detect voltage deviation and voltage qualified rate and overrun rate function
*timing acquisition: concentrator gathering directly by means of corresponding data of specified items
*timing, automatic data collection: concentrator can be set according to the master station cycle to read meter
*automatically again calling: concentrator will read meter again if can not receive data in schedule time, once fail again, a time stamp will be generated, and report to the master station.