Quick verdict
For spectroscopy analysis detection, the real decision is which job shows up first. The UPRtek MK350 Digital Spectrometer LED Meter Kit is the portable light-source analyser for evaluating LED and OLED sources without a computer. The BYK 6320 Acquire Rx Multiangle Spectrometer is the paint-focused route, with a multiangle design aimed at auto paint color matching.
UPRtek MK350 vs BYK 6320 at a glance
| Product | Listed price | Primary capability | Price bar |
|---|---|---|---|
| UPRtek MK350 Digital Spectrometer LED Meter Kit, Hard Case & adapter | USD 350.00 | Portable LED/OLED light-source meter with illuminated display | |
| BYK 6320 Acquire Rx Multiangle Spectrometer Auto Paint Color matching | USD 220.00 | Multiangle auto paint color matching |
Where each wins
Where the UPRtek MK350 wins
The MK350's strength is breadth. It is designed to be used without a computer, making it a practical field spectrometer for evaluating artificial light sources. The measurement set-CCT, CRI, CIE 1931/1976, and spectral distribution-gives more than a pass/fail check on a light source. The kit also makes it easy to keep the instrument organized. Add the illuminated display, and this is the option for spectroscopy analysis detection that needs visible readouts in darker booths.
Where the BYK 6320 Acquire Rx wins
The BYK 6320 stays on one clear job: auto paint color matching. Its multiangle spectrometer format is built around evaluating paint colors from multiple viewing angles, which is the kind of task a refinish shop hits repeatedly. If your workspace is already dedicated to color matching, the BYK is the more direct instrument. The lower listed price strengthens the case for a single-purpose used unit.
Product notes
UPRtek MK350 Digital Spectrometer LED Meter Kit, Hard Case & adapter
Choose the MK350 when the measuring job is LED or OLED source evaluation. It is easy to move between bench and field, and the included soft case, hard case, adapter, and PC cord keep everything together. The illuminated display is useful in dim surroundings. The flip side is fit: it is a broad light-source analyser, not a paint-matching specialist. If automotive refinish color matching is the only recurring task, the MK350 gives more measurement range than the job needs.
BYK 6320 Acquire Rx Multiangle Spectrometer Auto Paint Color matching
The BYK 6320 is the option for shop-floor color work. Its name tells you the workflow: multiangle auto paint color matching, which means the measurement geometry is set up for evaluating paint finishes at different angles. For a collision shop or a detailer who mainly needs to match paint, this direct focus can be right. The lower listed price makes it easier to add a used spectrometer without committing to a broader instrument. The trade-off is scope: it is aimed at paint matching rather than general light-source metrics, so for broader light-source analysis, the UPRtek MK350 is the alternative.
Final choice by use case
If your work involves LED, OLED, or other artificial light sources and you want a self-contained bench-to-field meter, pick the UPRtek MK350 Digital Spectrometer LED Meter Kit. If your priority is automotive color matching, choose the BYK 6320 Acquire Rx Multiangle Spectrometer; its single-purpose design is the match for a dedicated paint station.

