The ZX1 thickness gauge is pre-calibrated to measure steel, allowing the inspector to simply take the gauge out the box and measure. The ZX2 gives inspectors more pre-set calibration options by simply scrolling to a known material velocity, or selecting a common material from a list of material types stored within the corrosion thickness gauge.

The ZX6 and ZX6-DL corrosion gauges are at the top of the ZX line of basic thickness gauges. They combine a standard pulse-echo flaw detection measurement mode with a multi-echo through paint mode for use on materials with epoxy based coatings, and eliminate the error from the coating without having to remove it. They are equipped with adjustable gain, as well as automatic Time Dependent Gain in both measurement modes.