Agree and disagree...with humidity, you're spot on. Just use common sense. Keep most or all of the lid covered, mist daily, but not enough to saturate substrate or flood false bottom completely. If the frogs are sitting in mud, it's too wet. If they keep sitting in the water feature/bowl, it's too dry.Completely disagree. A total waste of money. Look at Johns post. They call him enlightened rouge for a reason.
With temps, a decent digital temp gun is worth it's weight in gold.