I bought three such thermometers at different times for different purposes. Readings differ by a maximum of 1/10 of a degree. Humidity readings at 1%. Very sensitive. You take it with your fingers, the temperature immediately rises, from the warmth of your hands. Handy small size - approximately 45mm on each side. Easily attaches with double-sided tape (included) to any surface. However, it must be borne in mind that the temperature of the walls affects the readings of the thermometer. So the refrigerator door may be slightly lower than the air temperature, as a result, the readings of the thermometer glued to the door will be inaccurate.
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