... .Li battery power High-Tech Digital Ultrasonic Flaw Detector Introduction: The digital ultrasonic flaw detector ... any fields that need defect inspection and quality controlling e.g. manufacturing industry, iron ... flaw location(Depth d,level p,distance s,amplitude,sz dB,)4.Automated ... are Ultrasonic Oil Level Meter, Ultrasonic Liquid Level Meter, Ultrasonic Flow Meter, Ultrasonic Open Channel Flowmeter ...