● Measuring Range：45-55 Hz, 45-65 Hz, 55-65 Hz
● Accuracy： Class 1.5
● Working Position： Vertical.
● Rated Voltage：110V, 220V, 380V, 440V.
● Limit of Voltage Fluctuation：±20%
● Consumption：Max. 15mA.
● Test Voltage：2kV, 50-60 Hz
● Pointer Length：ST-96 : 55mm
                               ST-72 : 38mm
● Composition：Glass window, ABS Resin frame and case,
                            bakelite base mounting fitting included.
● Color：Black base and frame, white scale plate and meter body.
● Pointer：Stick shape in black color.