... .8:zoom function,zoom in/out the wave of display zone,fully use of the screen.9:transmit wave ... 0dB step adjustment.rectification:positve,negative, fullwave,RFLCD display:5.7 inch high brightness TFT LCD,640*480 pixelsMeasurement model: Flank ... key√√√Shuttle key√√ Picture of Anyscan digital flaw detector A36 Picture of packing case: Quality certificate: High quality ultrasonic digial flaw detector A36