1. A colorimeter is generally any tool that characterizes color samples to provide an objective measure of color characteristics. A spectrophotometer is a photometer (a device for measuring light intensity) that can measure intensity as a function of the color, or more specifically, the wavelength of light.Click to see full answer. Considering this, what is the difference between a spectrometer and a spectrophotometer?A spectrometer measures emission spectrum, as the light is focused on its entrance slit, dispersed and registered at different wavelengths. A spectrophotometer measures absorption spectrum of a sample placed inside.Beside above, how accurate is a colorimeter? Applications: Colorimeters are extraordinarily accurate for straightforward color measurement and ideally suited for determination of color difference, fastness, and strength as well as routine comparisons of similar colors. Then, which is more sensitive between colorimeter and spectrophotometer? Colorimeters can determine colorimetric values, under a single illuminant easily and are used primarily for reflectance measurements. Spectrophotometers are the most precise, accurate and sophisticated color measurement instruments available for color quality control and color formulation.What does a spectrophotometer measure?Spectrophotometry is a method to measure how much a chemical substance absorbs light by measuring the intensity of light as a beam of light passes through sample solution. The basic principle is that each compound absorbs or transmits light over a certain range of wavelength.