... memory 3.RS232/USB port 3.Li battery power Advanced Portable Ultrasonic Flaw DetectorIntroduction: The ultrasonic flaw detector is the ... portable industrial non-destructive flaw detector, which can rapidly, easily and ... : 2.5,5,10,20, 30,40,50,60,70,80,90, 100,150,200, 250, 300, 350, 400,450,500 ...