The DF433 DIN-Rail meter is designed with the latest micoroprocessor and digital signal processing technology,Electric power parameters,energy and demand metering,remote control,over range alarming,statistic and records are available in one pocket-sized unit.There are also basic alarm on over/under current,voltage,power,power factor,frequency,demand and pulse output based on energy or reactive eneryg in DF433.Status monitoring is possilble using the four digital inputs.It can also be used as Remote Terminal Unit (RTU) for monitoring and controlling in a SCADA system.All measured data is available via digital RS485 communication ports running the MODBUS protocol.