”PORTABLE ULTRASONIC DEVICE TO DETECTABLE TRANSVERSE AND LONGITUDINAL FLAW IN WELD AND BASE METAL, WORKING TEMPRATURE -20C° TO 55C°, RANGE FROM 1MM TO 28 MT IN STEEL, GATE OPTION FOR AUTOMATIC START OF THE DISPLAY, GATE A, GATE B, AND DAC (DISTANCE AMPLITUDE CURVE), STORE & PREVIEW A MINIMUM OF 200 USER-NAMED DATA SETS WITH A-SCANS FOR QUICK RECALL AND INSTRUMENT SETUP. , IT CONTAIN 2 INDEPENDENT GATES MONITOR AMPLITUDE AND SOUNDPATH DISTANCE FOR BOTH FLAW DETECTION AND THICKNESS MEASUREMENT APPLICATIONS., 250 KHZ TO 25 MHZ FREQUENCY RANGE., 4 SELECTABLE DAMPING SETTINGS (50, 75, 150, 500 OHMS) FOR OPTIMUM PROBE PERFORMANCE.”