The MTG-99 is simple to use to non-destructively measure the thickness of any non-ferrous material up to 1" with access to both sides. The MTG-99 is portable, battery operated, can change color and vibrate on alarm, has an internal datalogger and is proudly made in the USA. Typical applications include plastic bottles, containers, tubing, Titanium, Aluminum and Copper tubes and pipes as well as composite structures.