Prepayment meter LED display

Prepayment meter LED display with a countdown manner, decreasing the minimum display unit is 0.1kWh. When the remaining
When power is 0 kWh electricity once the user inserts the card can be continued after electricity  mcb circuit breaker . Diminishing negative digital display to alert the user to enter a new share power. When a negative value reaches a certain value (can be set to the factory, usually-10kWh) will automatically power off after  circuit breakers a new mcb circuit breaker  of electricity to restore power. When the remaining battery capacity is less than the alarm value, the remaining battery display flashes. Prepayment meter LED display