We are Manufacturer Specialized in 48*48MM,72*72MM,96*96MM Panel Meter MOVING COIL INSTRUMENTS FREQUENCY METER POINTER TYPE:Model:ZC-T96M,ZC-T72,ZC-T48Accuracy: 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