audiometer vs measuring system

audiometer and measuring system both are nouns.

Word	Noun	Adjective	Verb	Adverb
audiometer	Yes	No	No	No
measuring system	Yes	No	No	No

As nouns, measuring system is a hypernym of audiometer; that is, measuring system is a word with a broader meaning than audiometer:

audiometer: an instrument used to measure the sensitivity of hearing
measuring system: instrument that shows the extent or amount or quantity or degree of something

Other hypernyms of audiometer include measuring device, measuring instrument.

audiometer (noun)	measuring system (noun)
an instrument used to measure the sensitivity of hearing	instrument that shows the extent or amount or quantity or degree of something