The DJSF1352-RN DC charging metering special meter has dual DC inputs and is mainly designed for applications such as telecommunications base stations, DC charging piles, and solar photovoltaics. This series of instruments can measure voltage, current, power, and forward and reverse electrical energy in DC systems. In actual use, total electrical energy can be measured, and electrical energy within a specified time period can also be measured. The detection results can be used for local display and can also be connected to industrial control equipment and computers to form a measurement and control system. Domestic DC charging station electric meter