Handheld metal analyzers are spectrometers based on XRF (X-Ray Fluorescence) spectroscopy technology, primarily consisting of a probe, CPU, and memory. Their portability and accuracy make them crucial in applications such as alloys, ores, environment, and consumer products.

Handheld spectrometers must have high resolution and signal-to-noise ratio, improved intensity accuracy and wavelength accuracy, strong resistance to external interference, and excellent instrument stability. The software of the instrument should be capable of performing complex mathematical calculations such as derivatives and deconvolution, calculating the similarity between spectra, pattern recognition analysis, supporting multivariate calibration analysis, and allowing users to create and search their own spectral libraries.