Thanks Arielle! My LG has a fan addition, so isn't that supposed to make the temp more stable throughout? I am also using the automatic turner, which limits the number of thermometers I can add, since I am pretty much filling up the spaces in the turner with eggs. I think I have figured out a plan though.102 is not the end of the world. THe hen runs at 102.
THe LG is not stable thruout -- it has pockets of warmer and cooler, and the closer to the coil the warmer, and on the mesh the cooler. All about averages. This is why you need to learn your own equipment. New doesnot equate accurate, as in correct.
I just ran a test hatch to check out all my thermometers. With eggs laid on the sides and thermometer on top, the temps ran from 100-106, on the other side of the incubator the temps ran a little lower. THat is the importance of moving the eggs all around the incubator to have a narrow range in hatching time.
I was scared to death I had cooked the eggs!! They hatched about a day late! WTH? Two pipped on day 21,most hatched on day 22, and a few on day 23. THis tells me that my temps are a little low, despite what the glass fish tank thermometers say. Or I can't read them very well! lol

I am intrigued at how my digital keeps going back to exactly 99.5ºF! The little dollar store see-thru thermo I mentioned was keeping pretty much right with it. SO I tried to calibrate the little see-thru thermo with the ice water method. I don't know if I let the ice melt too long, cause it was a little more than the recommended 5 min, but the little thermo stopped at 33-34ºF! That would indicate it is running a little high! Much different than I expected!!! So, I concluded that the new plastic thermo/hygro is WAYYYY OFF, since it is holding steady at almost 104ºF!
I also re-tried the medical thermometer by actually lifting one of the plastic viewing windows and quickly placing it on the turner to take the temperature. The digital only dropped 1 point of a degree in doing this. The medical thermometer stopped at 100.3!!! YAY!! Much better!!!
SOOOO, my plan right now is to trust the digital thermometer, and also put the little see-thru thermo in "surfing" on top of the eggs for a second opinion. I am planning on doing a dry hatch, since so many on here recommend it, so I am not too worried about that. I may end up having to hatch in egg cartons simply because of space - too many eggs to lay down in the LG, unless I can borrow another LG or similar as a second hatcher. And of course I will PRAY for a good hatch, because God is the ONE who is really in control of all LIFE and how many chicks hatch.
