The document discusses Thermo Scientific Niton portable XRF analyzers. It summarizes the key features and benefits of the analyzers, including their ability to provide lab-quality elemental analysis of metals in the field through their rugged design, easy-to-use interface, fast measurement times, and wide elemental detection range. The document also outlines their applications in industries such as metal recycling, manufacturing quality control, and oil and gas production to verify material composition and ensure process integrity.