This pocket sized scale that measures within a hundredth of a gram accuracy (0.01g), and has a maximum measuring capacity of 200 grams. The scale is able to provide weight readings in Grams, Carats, Ounces and Grains. It is powered by two AAA batteries (included) and has a flip open protective cover which protects the 2.5×3.0 inch weighing platform.  The scale has an auto-off feature that powers off the scale after 60 seconds of inactivity.