Replace your worn out, malfunctioning, or missing Cardinal Detecto scale power supply with this 8529-B217-08 12V AC adapter. For use with the PC-10, PC-20, and PC-30 digital price computing scales, this item allows users to plug their scale into any standard wall outlet in order to conserve battery power for when an electrical outlet isn't nearby. This adapter serves as a direct replacement for the one that originally comes with the scale.