... 32 parameters 3 line LED display DW series digital 3-phase multifunction Power MeterDW/MDW 3 line 4 digits LED ... : 0.2%, 3-phase voltage and ampere input isolation, high anti-interference;5) Comunication: RS232/RS485 interface, MODBUS RTU ... ), Panel Meter, Sensor Meter, inductor, Power Meter, Coulometer, Voltage Meter, Ampere Meter, Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay, ...