◎ IC Card Prepayment
◎ Balance Alarm
◎ Multiple Data Encryption
DDSY666 Single phase electricity meter is mainly applicable to single phase residential users who implement the system of prepayment. It can realize the functions of electricity metering, pre-purchase of electricity, and maximum load limitation.
◎ Pre-sale electricity, when the electricity is used up automatically power off，the threshold of power off can be set.
◎ One meter one card multiple dynamic encryption, user data security and reliability.
◎ With infrared and RS485 communication interface (Only for LCD display electricity meter only).