Salter Electronic Scale #1250 With its ultra fine precision, small size, and lightweight - fits in a pocket! - this scale is ideal for all your molecular gastronomy needs. The weighing tray inverts and is use as a cover to close scale. Comes with lithium battery. Auto and manual shut-off. Precision of 0.1g / 0.005 oz and up to 250 g / 8 oz. Dimensions 4.5 W x 3.1 D x 0.8 H. Ten year warranty.