... full electric parameters2. Monitoring and controlling power switch3. 4-quadrant,active and reactive electric energy measuring4. Multi- ... I,kW,kVar,kVarh,kWh,Hz,cosφLED 4 loops 4-20mA or 0-20mA4 DO/4DIRS-485MODBUS-RTU2 ... I,kW,kVar,kVarh,kWh,Hz,cosφLED 4 loops 4-20mA or 0-20mA4 DO/4DIRS-485MODBUS-RTU2 ... RS485/MODBUS-RTUAdditional function: switch value moduleQuantity : 8 pcs Network digital panel meter