Display: 3 Windows, Red high efficiency LED high 9.14mm (.36") Accuracy: ±0.5% ±2digit Operating Condition: -10℃~50℃ (20% to 90% RH non-condensed) Dielectric Strength: AC 2KV/1min Aux. Power: AC110V/220V 50/60Hz Function: Display 3 Phase Voltage Simultaneously. Measurement Range: Voltage: AC 50-600V |