Hey Everyone, it's been a while since we incubated eggs in an actual incubator, so I need a little help with the thermometer and hygrometer. I have this set and I hope someone else does as well so they can tell me a little bit about them. First of all, what is the best way to calibrate each of them? I tried ice water in a plastic bag for the thermometer and everything I have found online says to leave the thermometer in the bag only 30 to 60 seconds, is this right? Next, I noticed on the thermometer that there is a C/F near the bottom (its the gold one there) and I know that the C stands for Celsius and the F stands for Fahrenheit, BUT is the Celsius the numbers on top or bottom??? Next if you have these, are they adjustable?? If they are off, can they be adjusted and if so, How?? One last thing, our incubator is a still air, but it does have a fan that we put in. We also have the thermometers that can with the incubator, and I will probably use them as well.