Ultrasonic thickness gauges measure wall thickness from one side — the standard tool for corrosion monitoring of pipes, tanks, pressure vessels, and structural steel. A probe sends an ultrasonic pulse through the material and times the echo from the back wall, converting it to a precise thickness reading without cutting coupons or shutting down equipment.
Delta Test Technologies offers a gauge for every environment: the universal A1210 for general corrosion surveys; the A1209 for routine measurements; the A1208 frost-proof gauge for sub-zero fieldwork; the A1207 PenGauge — a pocket-size instrument for quick spot checks; and the compact A1201 for basic thickness measurement. Through-coating measurement capability lets inspectors read metal thickness without stripping paint or coatings.
Corrosion engineers, inspectors, and maintenance teams in oil and gas, chemical processing, marine, and utilities rely on ultrasonic thickness gauging for remaining-life calculations, inspection planning, and regulatory compliance. One-sided, non-destructive, and immediate — thickness measurement doesn’t get more practical.





