overall very good. At the first start-up with new batteries, it can show all sorts of nonsense, after "getting used to the batteries and the room" it stabilizes. Adjustment was practically not required, the adjustment is no more than 0.3 degrees from the nominal value. I have already bought 3 pieces and distributed them to my rather big family, everyone is happy. Its pros: simplicity, sufficient for everyday life speed and accuracy of measurement Some cons: fluctuations in measurement accuracy during measurements in a row
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