DJS5119 DC Energy Meter with RS485 Communication is a new generation of programmable intelligent instrument. The instrument supports DC signal monitoring of single voltage and current. DC Energy Meter with RS485 Communication can be widely applied to DC signal equipment such as DC charging pile and DC power supply. Equipped with one channel RS485 communication interface and one channel infrared communication interface, this instrument supports MODBUS-RTU and DL/T645-2007 communication protocol.