Radiometers are inexpensive, portable and provide quick measurements while spectrometers are more accurate, modular, and may be used in different applications and settings. Finally, spectroradiometers offer the best of both worlds where you have the accuracy and portability that a specific application may require.
Are well designed to handle a large variety of applications and functions. They utilize rapid capture technology to get a complex reading of color distributions and luminance very quickly. Additionally, their imaging photometers are extremely accurate.