Three-phase electronic prepaid electricity meter (hereinafter referred to as electricity meter), using advanced single-chip processing system for data collection, processing and preservation. Its purpose is to measure three-phase active power with rated frequency of 50Hz or 60Hz. The application of computer management, the purchase of electricity before electricity; Can limit the maximum usable power within the rated current range (defined by the power supply department); A table a card, dedicated card, lost card without loss of power, replacement card to use; The card can transmit data in both directions. Can automatically power off alarm users purchase electricity; When the electric quantity is zero, the power will be cut off automatically. And has a certain anti - electric theft software design. Color: blue-white net weight (product itself) : 1188g Product size: 216mm*145mm*71mm