... hours Detailed Product Description Digital Ultrasonic Flaw Detector FD201, UT, flaw detector, ultrasonic testing equipment, ndt, ultrasonic detector Production Info. :·Automated calibration Automated gain ... Velocity(m/s)1000 ~ 9999 Standard Delivery:Digital Ultrasonic Flaw Detector Main unit2.5MHZ-20 straight probe4MHZ-8x9mm, 60degree angle probe4A ...