I have my giant gunsafe in my garage and I have been working on the best way to keep the humidity low inside it. I bought two hydrometers and keep one inside the safe and one on the outside of it. Its raining for the past 40 hours so I checked the meter that's on top of the safe it reads 70% humidity and I open the safe and it is 48.5% inside. I have two 18" golden rods, two passive Evadry desiccant units and a mini dehumidifier plus I put a lamp in the safe that has a 60 watt bulb that I leave on all the time. I think im safe at 48.5% humidity. What do you think?