neilly
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If the guy at the desk used as you put it a "digital vernier".
then it could be he did not zero it ? if it was digital. Or , he did not know how to read it if it was a vernier scale.....as I have never come across a digital vernier....LOL
then it could be he did not zero it ? if it was digital. Or , he did not know how to read it if it was a vernier scale.....as I have never come across a digital vernier....LOL