08-19-2020, 01:53 PM
If it were me, I would take a chance. But then I am an EE.
For you....it may be worth it as it looks nice and so the chance of it being bad is small.
But working does not mean calibrated.
As for calibrated, it diesn't have to be true calibration, sometimes buying a tube with parameters verified on a similar tester and making sure they are the same when measured on yours is enough.
This said, the meter will likely need to be open and cleaned.
For you....it may be worth it as it looks nice and so the chance of it being bad is small.
But working does not mean calibrated.
As for calibrated, it diesn't have to be true calibration, sometimes buying a tube with parameters verified on a similar tester and making sure they are the same when measured on yours is enough.
This said, the meter will likely need to be open and cleaned.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
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