... AC voltage,current,phase,frequency,phase sequence,power 2.Upload Data:RS232 ETCR 4400 Three Phase Digital Phase Meter Features:Simultaneously ... 0.00 V~600V, Active Power: 0.0W~12kW, RS232 inferface, Data Storage: 500 sets. .Technical Specification FunctionSimultaneous measurement of three- ... : 3 pcs; Test Line: 4pcs(yellow, green, red,black); RS232 Data Line: 1 pc; Disk: 1 pc; Battery: 6pcs( alkaline ...