DDSF6666 series single-phase electronic multi-rate energy meter utilizes a mid-to-high-end chip, an enlarged integrated circuit board, and a fully automatic SMT assembly process. It features an LCD display and supports automatic switching between peak, sharp, flat, and valley rates. Additionally, it is equipped with an RS485 communication interface for remote meter reading.This product excels in high accuracy, high overload capacity, flame-retardant casing, thickened design, low power consumption,smooth operation, and long service life.