... for the weld inspect.6:Intellectual procedure for instrument calibration.7:Easy access to channel setting and data saving:Easy to ... result.8:zoom function,zoom in/out the wave of display zone,fully use of the screen.9:transmit wave of ... /6.0dB step adjustment.rectification:positve,negative, fullwave,RFLCD display:5.7 inch high brightness TFT LCD,640*480 pixelsMeasurement model: Flank ...