The gauge of electric energy digital type advance payment

摘要

The present invention relates to a prepaid digital electricity meter, which prepaid the user's electricity bill in advance and provides electricity for the amount paid. In this way, the user can receive a discount on the electricity usage fee according to the prepayment, and the labor cost reduction is greatly expected due to the need for the meter reader, and the power consumption or the balance of the prepaid amount can be displayed in real time. This allows more efficient power consumption, and prevents anyone other than the user from challenging the power of a prepaid meter.;In addition, it protects the circuit board embedded in the main body, and the transparent cover which is separated from the main body when operating the button unit of the circuit board can be easily fastened to the main body by the one-touch fastening method, further improving the convenience of use.