This product also has a pre-paid and multi-rate capabilities. 
 Payment card purchase by the user input table, start power meter, a form of a card, the card and do not general, the meter automatically switches according to different price periods, the table after purchase automatically wind up with the amount of power, thus effectively solve the difficult problem of tariff collection. 
 Can measure the total active power, active energy under different rates. Rates of four points a day, divided into 16 hours, days, days off programmable. 32 holidays throughout the year, 12 time zones, 8 sets of weekly programming, 8 sets of daily programs. 
 Automatically settled, the first day of each month 00:00 to, save the recent settlement of the 12 points of data. 
 Infrared communication interface can be used with hand-held computer or portable computer communication, convenient settings, and copying. Left-side tail pulse output terminal for easy meter calibration and meter reading, automatic summer / winter seasonal conversion.