digital laser panel meter measure voltage, current, power,frequency, power factor, energy, with RS485/ support MODBUS DI+ ... for 220V, or 240V (ph-N) low voltage system;2. Simultaneous sampling of Voltage and Current;3. Compmact design with real time measurement ... Meter measures and display following parameters: 1. Voltage—Ua, Ub, Uc, Uab, Ubc, Uca, 2. Current—Ia, Ib, Ic, In 3. Active ...