... electric measurement can indicating meter, including: AC/DC voltmeter, AC/DC ammeter, frequency table, phase table, single three-phase ac active power table, three-phase ... software calibration, does not need to open the case, stable and reliable; Voltage output terminal with ... GF302D Portable three-phase kWh meter test equipment (class 0.05/0.1) GF302 Portable Three-Phase Multi-function Electrical ...