In the second delivery all o. K.
But when calibrating patience is really in demand. Have the thingy simply negated. And after 4 1/2 hours it was of its own accord. Possible variations in the temperature and / or humidity over other measurement data are irrelevant for me. Because Differnzen the tenth area at room temperature or outdoor temperature to monierein I find idiocy.
Dimensions are o. K.
When not optimal, I feel the "effort" to press the backlight. Man has to the device fetshalten. Luminosity is very good.
In the delivery are counter-offer text Amazon NO Battery's.
Termometer I would buy again.