Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: purchased for a gun safe
Review: Put this device inside a small gun safe along with a digital humidity meter.It has been in there for almost a month and the humidity inside the safe is just slightly lower than outside. The safe has a foam gasket around the door so I guess it is fairly air tight. Maybe I need to give it more time.
