... : A,B,C 1.pipeline Ultrasonic test standard / UT of low carbon tubes2.testing: NDT Ultrasonic testing flaw detector3.Scan mode ... screen, high-luminance, nice focus and clear display.9. Alarm pulse output can be delayed for more accurate marking10. Eight ... , B, C three door alarmsFat police: machines, audio alarm (three alarm door there are three different voices), electric pulse output ApplicationIt ...