Explore a wide range of handheld spectrometers for light measurement and analysis. Find portable spectrum analyzers for research, LED testing, and more. If you're looking for the top USB pocket spectrometers for on-the-go analysis in 2025, I recommend checking out compact models like the Spectryx. AURA ® handheld NIR from ZEISS is a powerful portable spectroscopy solution. Measure samples in the field and rely on robust performance and precise results in the widest variety of environments. Measure where you want when you want with AURA ® handheld NIR. Whole product series boasts touch-and-fire functionality, eliminating.