A handheld metal analyzer is a spectrometer based on XRF (X-Ray Fluorescence) spectroscopic analysis technology, primarily composed of detectors, CPU, and memory. Its portability and accuracy make it an essential tool in fields such as alloys, minerals, environment, and consumer goods.

Handheld spectrometers must have high resolution and signal-to-noise ratio, superior 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 spectral similarity, pattern recognition analysis, supporting multivariate calibration analysis, and enabling user-built spectral library creation and search.