I'm using a digital sitting on the wire with eggs. Do I have to worry about humidity being too high or if water gets on the eggs? I have a turkey baster I've been using to add water but it don't fit all the way in a hole. I'm sure I can find a straw to aim it better... I've heard internal peeping from At least 1
You have a few suggestions already but my approach due to what I had on hand was aquarium tubing. Fit perfectly in one of the vent holes and its long enough to push down through the metal tray which holds it in place. If possible leave it a bit long and that way you can add or take away slack as necessary for opening and closing the bator.