Hand-Held XRF Analyzer NPXRF-101delivers the performance needed for rapid metal alloy identification. We provide the analyzer with a waterproof and dustproof large high-resolution LCD and the latest digital signal processor. Our range of handheld XRF machines is developed with Photoelectron, microelectronics, semiconductors, computers, and many other technologies to deliver results you can trust. It has the minimum detection limits of 1 to 500 ppm. It obeys the method of Energy-dispersive X-ray fluorescence to detect the samples.