Atmospheric pressure guage (9)

I believe the answer is:

barometer

(Other definitions for barometer that I've seen before include "It checks state of sky" , "One measures pressure" , "Instrument that measures atmospheric pressure" , "One showing pressure" , "Air-pressure measurer" .)

I've seen this clue in The Star Tribune.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.