Easy enough. Press down the strings at the first fret and see if it exceeds 1 semitone, when it begins to exceed 1 semitone, and how much it exceeds 1 semitone when fully depressed. That will give some indication of how high it is from a functional perspective.
Here's the tuner I currently use for intonation. With everything set and trem balanced, fretting the 1st fret will yield about 4-5 of those red blocks sharp. 3rd fret about 2-3 blocks...













