Hello Alberto! Please make sure Eve Weather is never exposed to direct sunlight. And make sure to have a good temperature sensor to compare with. The accuracy ± 0.3 °C / ± 0.54 °F, ± 3% Humidity, ± 1 mbar / 0.03
inHg. There is no way to calibrate, sorry. Best regards, Volker
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Aug 11, 2021