A total of 78,000 single-phase and three-phase prepaid smart meters had been put into operation in the Prepaid Energy Meter Project in Nigeria on June 13，2020, which greatly facilitates the life of local people and drives the local economic and social development.

DDSY395（Z）Single Phase Keypad Prepaid Smart Energy Meter is a keypad type, automatically connection or disconnection prepaid electricity meter. Built-in wireless communication modem (GPRS/3G/4G/NB-IOT/LoRa) can collect the energy data from the meter and transmit remotely directly to the server platform for energy data analysis. This meter is comply with STS standard, can be widely used for counting the electricity consumption of users over a period of time.