Utilizing color waveform A-scan and time based B-scan for absolute correctness, these new state of the art thickness gauges are packed with useful features allowing users to be confident of the displayed values on the most critical of applications. These multi-functional units offer everything from basic measurement, Scan mode with Min/Max viewing, GO/NO GO display, Adjustable Sound Velocity and Thru-Coating Capabilities. These dynamic sonic gauges are designed to measure the thickness of metallic and non-metallic materials in critical situations that ordinary thickness gauges couldn’t do. The Phase II UTG-4000 will accurately display readings in either inch or millimeter after a simple calibration to a known thickness or sound velocity.