It would be difficult, if not impossible to find an ultrasonic wall thickness gage offering the long list of STANDARD features the TG110DL does. For about the price of the competition's current fixed velocity, entry level gage, NDT Systems, Inc. offers a full featured thickness gage.
Features include 0.022" - 50.000" (0.56mm - 1270mm) thickness range, AutoZero, AutoHold, up to 200 hour battery life, and Inch/Metric user selectable units. Size: 5" X 2.625" X 1.25" and weighs only 11oz!!