These desiccators have a reinforced aluminium frame, a door with magnetic catch and a circular rubber seal, 1 resp. 2 variable height shelves, a desiccant tray and an easy to read electronic hygrometer. The desiccators are stackable and can be used with up to 5 resp. 17 shelves. These desiccators have a reinforced aluminium frame, a door with magnetic catch and a circular rubber seal, 1 resp. 2 variable height shelves, a desiccant tray and an easy to read electronic hygrometer. The desiccators are stackable and can be used with up to 5 resp. 17 shelves.