Single-phase electronic prepaid watt-hour meter) (hereinafter referred to as the meters measuring electricity USES the microelectronics technology, adopts full shielding, full sealed structure, with advanced single chip microcomputer processing system for data acquisition, processing and preservation, has good resistance to electromagnetic interference, low electricity consumption, high precision without correction table, preventing electricity-stolen, high overload, long life characteristics. 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 card (or a table and a remote control), dedicated to the card, lose the card without losing power, replacement card to use; The power card can transmit data in both directions and automatically alarm the user to buy power. 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 (the product itself) : 485g Product size: 156mm*109mm*58mm