The 2 received thermometers indicate virtually the same temperatures to 1 / 10th of meadows ° C, but with an error of less than 2 ° C

The 2 received thermometers indicate virtually the same temperatures to 1 / 10th of meadows ° C, but with an error of less than 2 ° C compared to a laboratory standard thermometer.
The manuals supplied with thermometers indicate that the accuracy is + or - 1 ° C, which is not the case and a display incompatible with the degree of 10th. I returned via Amazon 2 thermometers.