I bought 2- LG incubators. 1 holds steady temp really well and the other doesn't. The temp in the bad one just will not stabilize. It runs anywhere from 97 to 104 and won't hold steady. Another thing I've learned is for the last week you really need to get the humidity up. Upping the humidity has really increased my hatch percentages. For the final 4 days I put pieces of wet sponge inside, fill bottom of incubator with water, and put a vaporizer in the room. I keep a humidifier going in the room for all 3 weeks. Hope this helps somebody.