Ferment and Rise Bread Dough - Make Yogurt - Melt Chocolate * Temperature range: 70 - 120°F (21 - 49C); Typical humidity 60-80% * Reinforced polypropylene body; Aluminum water tray * Closed (outside dim"s):18 x 14.5 x 2.75"; Open (inside dim"s):15 x 12.5 x 8.5 * 110V only; 30-day money back guarantee; 1-year warranty