... Based on ultrasonic pulse reflection testing principle, Anyscan-20 Digital Ultrasonic Flaw Detector controls all testing process by the mini ... . And it can work continuously about 8 hours.With large capacity, digital multi-color TFT LCD, original imported stable IC, small ... size, light weight, stable performance and favorable price, Digital Ultrasonic Flaw Detector Anyscan-20 is one of the state ...