Similar to 28288-50 but this auto-desiccator cabinet features an absorption/regeneration cycle for the silica gel desiccant. No desiccant tray is needed. The gel is contained in the control section, where it absorbs moisture to maintain a low (30-40%) relative humidity. The absorption period lasts 4-1/2 hours, indicated by a green pilot light. After regeneration of silica gel, the cycle repeats. 110V, 60Hz.
