I was also looking at the AcuRite humidity moniter, but the price is cheap and I'm afraid the product will be cheap as well. I've heard both good and bad things about it.
I'm thinking about bumping up the time to an hour twice a day to see how that fares. Maybe switch the substrate as well? If I switch to aspen bedding, then I will for sure have to get a thermostat for the UTH (shame on me for not having one already).
If you can't tell, I'm not that experienced with snakesMarcie is my first one, and even though I've had her for a year next month and have been researching constantly, I'm still clueless.