Page "Thermometer" Paragraph 44

The precision or resolution of a thermometer is simply to what fraction of a degree it is possible to make a reading.

For high temperature work it may only be possible to measure to the nearest 10 ° C or more.

Clinical thermometers and many electronic thermometers are usually readable to 0. 1 ° C.

Special instruments can give readings to one thousandth of a degree.

However, this precision does not mean the reading is true or accurate.