I thought this would not work and no, the oven in the fridge that works, even to control the bread oven wood !!! I also go around the windows to see if there are no thermal bridges. Really easy to use, ice is at 0 ° C, the water slurry to 100 ° C, it seems to me good directions and quickly. Even as a clinical thermometer !!! Direct the pointer in the mouth 37.5 ° C. Good packaging, fast delivery, I see only good applications of this product. I have not yet used all the other functions available to this machine because you should read the doc and I have not taken time.