Pointer Frequency Meter 55-65 Hz 220 Volt ACDirect Read Analog Frequency MeterVoltage Range 220 Volt AC +/- 15%Frequency Scale: 55-65 HzScale is linearScale has 0.2 Hz divisionsQuadratic 90 angle scaleAccuracy: 0.5%Meter dimensions: 2.6″ (H) x 2.6″ (W) x 2.35″ max (D) (1.75″ behind bezel depth plus terminals)Black bezel dimensions: 2.83 x 2.83″ (72mm x 72mm)Material: Gray steel sides with black plastic backSACIFC4A ESCALA