DW9 Digital power meter 1.Measure object : voltage, current, power, power consumption, power factor, ... phase 1.Features of DW9 three phase digital power meter : - Multi-function coulo-meter. - Measuring object: voltage, current, power, power consumption, power ... , contact capacity: AC 250V/3A or DC 30V/3A. - With analog 4~20mA output. - With RS485 communiation interface, modubus RTU protocol ...