... more channels3. ultrasonic flaw detectIntelligent Digital Multi-channel Ultrasound machine uses the most advanced digital electronic technology and ... or semi-automatic) non-destructive ultrasonic testing.Features of Ultrasound machineIndependence of the channel type, switching to receive, ... demands for users.Main Technical Data of portable Ultrasound machine Gain 0-100dB,step 0.1dBDetection channels ...