... performanceThree Phase Digital Panel Meter, Power Meter, Digital Meter,Multifunctional Panel meter,meter... Display: 3 1/2 digits. LED displayAccuracy: 0.5% ±2 digitsAuxiliary power: AC 110V ± 10 ... 220V± 10% 50/60HZInput signal: AC voltageMeasuring range: 0-600V AC, for the voltage over 600V can use voltage transformer.Consumption: <3VAOperating Environment: temperature ...