Moving Iron & moving coil Instruments AC Ammeter:Model: ZC-96, ZC-72, ZC-48, Class: 1.5 Specs: 0.1A, 0.5A, 1A, 1.5A, 3A, 5A, 7.5A, 10A, 15A, 20A, 25A, 30A, 50A, 75, 100A (use Ext. CT 5A) Note: For 60/75/100A direct meter, the class in 2.5. Advantage: The scale can be easily changed without opening the front frame so that the class will not be influenced.Moving Iron & moving coil Instruments AC voltmetersModel:ZC-96, ZC-72, ZC-48 Accuracy: Class1.5 Specification:30V, 50V, 75V, 100V, 120V, 150V, 250V, 300V, 450V, 600V (For 450-380KV,should be used with potential transformer whose secondary voltage 100V).Moving Coil Instruments DC Ammeter:Model: ZC-96, ZC-72, ZC-48 Class: 1.5 Specs:25uA, 30uA, 50uA, 1mA, 2mA, 5mA, 10mA, 20mA, 30mA, 50mA, 75mA, 100mA, 150mA, 200mA, 250mA, 300mA, 500mA, 1A, 3A, 5A, 7.5A, 10A, 20A, 30A, 50A, 75,100A (used with Shunt) Note: For 60/75/100A direct meters, the class in 2.5. Advantage: The scale can be easily changed without opening the front frame so that the class will not be influenced.Moving Coil Instruments DC VoltmersModel:ZC-96, ZC-72, ZC-48 Accuracy:Class 1.5 Specification: 3V, 5V, 7.5V, 10V, 15V, 20V, 30V, 50V, 75V, 100V, 120V, 150V, 200V, 250V, 300V, 400V, 450V, 600V Note: Over 6000V should be used with Ext. Resistor. (Rated current 5mA).