I had all 5 thermometers side by side in the kitchen and they all were the same temperature. One of them I digital. Inside my incubator there is a different reading in every spot. I would think that with the fan and the fact that this incubator is small that the air inside would be the same temperature so I'm not sure about all of this. Could someone offer some insight? I am having too many eggs crashing and if its 104 in one corner and 98 in another, I can understand why.