Profile: Demeq S.R.L. provides ultrasonic thickness and corrosion gauges. Our QS3 ultrasonic thickness gauge is simple, affordable, and very easy to operate. It is used to measure the thickness of metal walls and structures without coatings, as well as the thickness on plastics, acrylics, ceramics & glass. It features one-step calibration, a graphic display with large digits that are easy to read, back light illumination, contrast adjustment, and a memory for up to 1000 readings that can be viewed in the unit.