I just bought the ADV 20 with turner, plugged it in, it got to temp and just held steady all day self adjust the temp. So far I love it! I also bought the ova-scope and this thing is amazing, looked at a brown egg (non-fertile) you can see all the way thru it, and you can rotate the egg,,,,,,,,,,I will set eggs Wednesday and i am very excited after using an old LG that I had to constantly adjust the temp on. Had it kill 24 shipped eggs, before I figured out the problem. I thought my grandson was messing with it (he's 2) Then I figured out we had an electricity problem, when the A/C was on during the day the bator wasn't getting full power, when we went to bed and turned the air off the bator shot up to 108,,,,,,,,,,,,,think I will love this
Brinsea!!!