Designed for on-site analysis, they deliver rapid and accurate PMI, grade ID, and elemental testing, ideal for scrap yards, foundries, large structures, and remote inspection environments. Our novel near-infrared spectrometers work with LVF technology. This makes NIR analyses for a wide range of applications available quickly and at almost any location. The handheld instruments integrate light source, spectrometer, evaluation unit, data storage, color display and Li-ion battery at a. As a global leader in this area, SPECTRO offers a complete range of metal analyzer products – from handheld XRF to arc spark OES spectrometers – for the many different tasks in onsite metal analysis. XRF works on a simple, non-destructive principle: when a material is hit by X-rays, it emits secondary (fluorescent) X-rays unique to the.