Technical parameters and main functions:
1) Type:
   a) General prepaid meter
       i) Contacted IC card prepaid meter
       ii) Non-contacted IC card prepaid meter
   b) Prepaid and power line carrier wave meter
2) International standard of general prepaid meter: IEC 61036, IEC62052-11, IEC62053-21
3) Accuracy: Class 1.0, Class 2.0
4) Rated voltage:
   a) Single phase: 110V, 120V, 220V, 230V, 240V
   b) Three phase: 220 / 380V, 230 / 400V, 240 / 415V, 100V, 120V
5) Rated current (A):
   a) Single phase: 1.5 (6), 5 (20), 5 (30), 10 (40), 10 (60)
   b) Three phase: 1.5 (6), 10 (40), 15 (60), 20 (80), 30 (100)
6) Frequency: 50Hz, 60Hz
7) Starting current: ??0.004ib
8) Display:
   a) Contacted IC card meter with LED display
   b) Non-contacted IC card meter with LCD display (Jinque's patent technology)
9) Prepayment functions to ensure energy payment: buy electricity first and then use it. One card for one meter and the cards can be provided when lost
10) Alarm function: reminds users to buy more energy
11) Overdraft prevention: users' over-load energy is limited
12) Information record: the energy bought and used will be recorded
13) Load control
14) Carrier wave prepayment meter can purchase energy by two methods of carrier wave and IC card
15) Meter reading by carrier wave
16) Controls opening and closing for relay by carrier wave remotely