Thermo Scientific Niton XL3t Handheld X-Ray Fluorescence (XRF) Analyzer, Model XL3t 700. Equipped with a 50 kV x-ray tube. Provides approximately 2x the x-ray flux of a 40 kW x-ray tube. Lower detection limits for higher Z elements, including barium in soils and sediments, and cadmium in plastics. Shorter measurement times.