A digital meter is best used for measuring a static value
an analouge meter is best for measuring a dynamic value this is because the eye can easily detect the change on a needle that moves
most sensors have a range they operate in sometimes they even end up with a dead spot in the middle with an analogue gauge as you take the sensor through its range you will see a dip of the needle but with a digital meter numbers moving they jump around so much good chance you will miss any real change pattern
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A Crowded lift will always smell different to a midget
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