Ultrasonic inspection or testing utilizes the transmission of high frequency sound waves into an object to detect imperfections, flaws or changes within the test subject. Several ultrasonic testing methods exist; however, the most commonly used technique is the Pulse Echo method. In Pulse Echo ultrasonic testing, sound waves are introduced into the material to be inspected by way of a transducer. Those sound waves are then picked up or received by another transducer that is located opposite the first. A handheld device then displays or presents the information on a screen. That information is then deciphered by a qualified technician or engineer.