Accuracy: class 0.5 or class 1.0 96x96, 72x72, 48x48 96, 72 and 48 Series Frequency MeterAccuracy: class 0.5 or class 1.0Voltage: 110V,220V,380V,415V,440VFrequency: 45-55Hz,45-65Hz,55-65Hz,47-53Hz,57-63Hz,450-550Hz,450-650Hz,550-650Hz 96, 72 and 48 Series Frequency Meter (Reeds Type)Accuracy: class 1.0Voltage: 110V,220V,380V,415V,440VFrequency: 45-55Hz,45-65Hz,55-65Hz,47-53Hz,57-63Hz