What is another word for sensitometer?
Pronunciation: [sˌɛnsɪtˈɒmɪtə] (IPA) 
A sensitometer is a device that measures the sensitivity of photographic film to light. Synonyms for sensitometer include densitometer, photometer, or light meter. Densitometer is a broader term encompassing any device that measures the density of an object, while photometer is a more general term for any device that measures the intensity of light. Another closely related term is spectrophotometer, which measures the reflectance of an object across a range of wavelengths of light. Synonyms for sensitometer also include exposure meter, which measures the amount of light necessary for proper exposure on photographic film.
