Portable Multi-Parameter Colorimeter FM-PMC-A100 - Multi-Test Colorimeter Fison Portable Multi-Parameter Colorimeter performs accurate on-site measurements with LED light and ±1 nm wavelength precision. Automatic wavelength selection and correction ensure consistent results. Its USB interface, intuitive operation, and durable design make it practical for diverse environments. https://www.fison.com/portable-colorimeter/fm-pmc-a100