Product review (5 stars): Here's how to convert it to Fahrenheit
This is a pretty nice thermometer, I use it on my fridge and it works great.

I uploaded a picture of how to convert it to Fahrenheit in "Customer Images". You can see it if you click on "Customer Images" to the right of the reviews area.

See the Picture here: http://www.amazon.com/gp/customer-media/permalink/mo1U6GF1P03HXYQ/B008MWJK9K/

In text: To convert this thermometer to Fahrenheit open it and find three small square pads on the circuit board. Connect the "inner" one (i.e. the one closer to the center of the board) and the pad in the middle together. Don't try to solder them it's far too difficult. Instead squish some foil into a ball and tape it in position.