Auto Dry is used for long term storage with less door open and close. Humidity can be adjusted from 20-50%RH. It can be used to 1. Cameras, lens, leather bags, watches, coffee, dry food, etc 2. Storage of micro-films and positive/negative films 3. Storage of antiques and ancient documents 4. Storage of electronic devices, PCB and IC packages before removing from moisture barrier bag 5. Storage of powdered medicines and water solution 6. Storage of micro-lens and microscope lens etc AD-50 Humidity: 20-50%RH External dimension: W334 x D328 x H573mm Internal dimension: W310 x D300 x H538mm Accessories: 1 transparent plastic drawers Drawer capacity: 12 kgs Weight: 10kgs Internal capacity: 50L Power consumption: 1.9w/h Material: Plastic top&bottom, steel body, glass door Display: Hygrometer