I need a bit of advice. I just started my first batch of eggs. I have a profarm 4200 by farm innovation. I bought it knowing it wasn't the best, but its the best I could find around here in my budget. I knew right off the bat to not go by the thermometer on top. So inside I put the mercury thermometer. Then, from the advice of many, bought a digital humidity/temp gauge. It is an Accurite. My temp will stay steady for hours, then the digital temp will spike up to 104. I then reset it it and repeat. The mercury thermometer doesn't read that high, but the one on the top will go up. I'm tired and frustrated and its day two. I have great BCM and blue Wheaton marans in there and really don't want to cook them!