The scale is subdivided at first glance in usual increments of what is actually thoughtfully when then not in four steps (ie 2.5 ° C per division) would be divided. What is this please? Displays the pointer around on the third line after 10 does not mean about 13 ° C or 16 ° C (which would make sense for a 5 or 10 division) but results to recalculate 17.5 ° C.
I do not know how other people (especially the manufacturer) using a thermometer, but I use as a clock: I look for about 1 second and it knows how hot or cold it is. A thermometer for that I need a conversion table is useless. If I were not too lazy, I'd send it right back. Well, so I bought a key ring for over 10 who holds hope what he promises.
Total: Absolutely useless.