Colorimeter refers to a device used in colorimetry that aids in the absorption of a particular wavelength of light by a specific sample solution . Louis J. Duboscq invented it in the year 1870. It is employed to measure how much light transmits and absorbs as it passes through a liquid. Simplify your testing in the field by using the DR900. Buy Now! Spectrophotometer provide precise color analysis for solid, powder, paste, grain & liquids. CHNSpec is an international brand in the field of colorimetry. Cleaning: Clean the colorimeter with a soft cloth after use. What is the difference between a colorimeter and a spectrophotometer? A colorimeter is an instrument used to measure color by capturing light at specific wavelengths through filters that capture the red, green, and blue (RGB) components.