Digital or Mechanical air pressure gauge?

[latole]

A analog is "fragile". If reading is right/ accurte today it might not be the case next month.
Needle / movement should not be hit. Never.

I use a good digital one. Many digital are not accurate, easy to read do not mean reading is right. This one is accurate :
Good for car valves and cycle valves.
My cycle mechanic use it:

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[shoegazer]

I still use a mechanical one like the ones pictured above. I recall comparing its reading to another one and to the one on the pump at the gas station. They were all within a pound of each other.