measuring system vs measuring instrument

measuring system and measuring instrument both are nouns.

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

As nouns, measuring system and measuring instrument are synonyms defined as:

measuring system and measuring instrument: instrument that shows the extent or amount or quantity or degree of something

Other synonyms of measuring system include measuring device.

measuring system (noun)	measuring instrument (noun)
instrument that shows the extent or amount or quantity or degree of something	instrument that shows the extent or amount or quantity or degree of something