1.Level and the distortion degree at the same time in two headers to display, measurement precision.
2.lightweight, simple and practical
3.A wide range of filters, even if the signal contains the signal of impurities can also be precision measurement.

Test level range: 100mV-100V,7 archives range
Test frequency: 400Hz+/-10%,1KHz+/-10% ,Two-point frequency
Distortion degree range: 0.01%-30%,Six full-scale
Input resistance: 100Kohm
Supply voltage: 220V/110V +/-10%,50/60Hz
Dimensions: 283x264x155mm
Weigh: about 4Kg