Galantini stated a fact from manual: «4- The thermometers have a margin of
error of +/- 0,05 Celsius»

Lomax replied with speculation: «This depends on the probe. However, from
other data (such as probe rated temperature of 150 C.) the probe has an
accuracy of +/- 0.4 C. He's greatly overstated the accuracy, it seems, and
that is crucial here. The *resolution* is 0.1 C., and I think he munges that
into +/- 0.05.»

You still do not get it that thermometer must be calibrated in respect of
boiling or freezing point of water before it can be used for accurate
measurements. Without calibration, it's accuracy is just ±0.4°C. But
thermometer reproducibility is ±0.05°C and this means that thermometer gives
same reading with this accuracy in two consequetive measurements.

As Mats Lewan calibrated the thermometer that boiling point was 99.6°C,
altough real boiling point in Bologna in that particular day was 99.9°C.
This is what it meas that thermometer accuracy is ±0.4. But relative
accuracy or precision or reproducibility is always higher in thermometer
than the resolution of display. In this case digits are by one decimal,
hence ±0.05°C accuracy.

I have said this before, but it seems that you are not familiar with this
calibration issue.

But, no other negative comments on your Galantini critique. It was quite
accurate with precision ±0.05.

—Jouni

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