... phase 1.Features of DW9 three phase digital power meter : - Multi-function coulo-meter. - Measuring object: voltage, current, power, power consumption, ... : AC 250V/3A or DC 30V/3A. - With analog 4~20mA output. - With RS485 communiation interface, modubus RTU protocol. - Power ... , G.WWelcome to contact us ! IBEST ELECTRICAL CO.LTD With or Without Analog Output , DW9 Three Phase Series Digital Power ...