... display: voltage and current, RS485 communication PMAC600D Three Phase Voltage Meter/Ampere MeterSpecificationsPMAC600D three phase ammeter, ampere meter, current meter, small ... voltage apere meter with following features:1. Measure three-phase AC current2. LED display for local data check3. ... Auxiliary function C -- One RS485 communication 72mmX72mm size, Three Phase Volme, RS485 current meter