Beautiful window thermometer. Mine turned out to be surprisingly exact so far (german fall temperatures). A little tricky to place correctly since the holder does not seem to be fully aligned to the scale - you need to align the water level with the scale lines of the thermometer. The only possible downside is the flimsy black click-on base which is mounted onto the window. I am quite curious how long these three very thin plastic holders (less than 1mm material thickness) will last before they break. A bayonet lock made out of thicker plastic would be much more convincing. All in all, I highly recommend this one if you can accept it might fall off one day - especially when considering the price.
Swift delivery and excellent quality. Strongly recommend the seller & item.