The Digital Scale displays weights to the nearest ounce up to 50 lbs. on an LCD screen. A backlit display feature makes reading the scale in low light easy. Weights also can be displayed in metric units. The scale is powered by three AAA batteries (sold separately) and will automatically turn off after four minutes of inactivity. Internal memory will store up to eight weights and will total them for you. This unit’s taring feature will zero out the weight of a container, and then produce a new reading after fish are added to the container.