Don't always look for condensation. I rarely see that as it requires (in general) a temperature differential in order to condense. In a sealed incubator with an egg box (which I use), the temp in the box is the same outside the box. Therefore, I get no condensation even though I have 100% humidity.

I always say, "Let your eggs be your guide.". If they are not collapsing and appear full, there's enough humidity. Of course, towards the end of the incubation period, that's different.
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Jay A. Martin
Jay Martin Reptiles

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