static tube vs measuring device

static tube and measuring device both are nouns.

Word	Noun	Adjective	Verb	Adverb
static tube	Yes	No	No	No
measuring device	Yes	No	No	No

As nouns, measuring device is a hypernym of static tube; that is, measuring device is a word with a broader meaning than static tube:

static tube: a measuring instrument used to measure static pressure in a stream of fluid
measuring device: instrument that shows the extent or amount or quantity or degree of something

Other hypernyms of static tube include measuring instrument, measuring system.

static tube (noun)	measuring device (noun)
a measuring instrument used to measure static pressure in a stream of fluid	instrument that shows the extent or amount or quantity or degree of something