A benchtop colorimeter is a device used to measure the color of a sample. It's commonly used in various industries such as food and beverage, pharmaceuticals, paint, and textiles, where accurate color measurement is critical for quality control.The sample is placed in the holder, and light of a specific wavelength or range of wavelengths is directed through it. The detector then measures the intensity of the light that passes through the sample, allowing for the determination of its color.