The smart choice for anti-oxidation, anti-deterioration, anti-corrosion, anti-fungus and anti-aging HDL series is specially designed for the storage of: cameras, lenses, memory cards, video cameras, telescopes, photographs, slides, CDs, DVDs, paintings, antiques, stamp collection, coin collection, medicine, tea, coffee, seeds, leather, etc.Digital display with adjustable humidity 25~55%RH - Steel ...