A retail scale provides a price for an item based on its weight. If the price per kilo or price per 100g is in the scale's memory, placing an item on the scale will generate a price based on its weight.
A retail scale is a specialized weighing instrument used in commercial settings—such as supermarkets, delis, and farmers' markets—to measure products for sale based on weight. These scales, often NTEP-certified "legal for trade," feature price-computing software that calculates the total cost of an item based on its weight and a programmed price per unit.