digital panel meter,panel meter,energy meter,ampere meter,volt meter,freqency meter,power meter,power factor meter,hour meter, m digital panel meter,panel meter,energy meter,ampere meter,volt meter,freqency meter,power meter,power factor meter,hour meter, moving coil instrument, ... green) 2. Accuracy: 0.5% +- 1 digit 3. Auxiliary power: AC 110V +- 10% 50/60Hz, AC 220V +-10% 50/60Hz 4. Input signal ...