Hi,
In your response to my question in this Q&A Link Text , you simply responded that the validity of a team provides gauge is too inaccurate to be used in competition, (although it is far more accurate than the current pressure gauge, nothing). I did not receive an answer as too whether or not it is a legal non functional decoration. It does not need to be viewed by referees, but rather solely used as an aid to teams for monitoring their pressure before and after, But Not During a match.
Thank you,
Brian