Product review (5 stars): Easy to convert to F if you can solder to points together on a circuit board.
This board looked different than the previous photos. Was still easy to find two points on the board that were not together. The big hint was the F near the open solder points.
Solder the two points together under the F. The attached photos show before and after. Look for the new mound of solder for the exact location on this version of the board.
Great thermometer and will order several mor again.