Lactation Digital Baby or Infant Scale - Doran ( 4500 ). The DS4500 Infant Lactation Scale has a 45 lb (20 kg) capacity , with weighting sensitivity to track even the smallest weight change. Best-in-class features include one-button feed functions for recording weight before and after feeding, as well as amount fed. Audio indicators for scale status, allowing attention to be focused on the infant, rather than the weight display. Capacity: 45 lb x 0.1 oz, 45 x 0.005 lb, 20 kg x 2 g. Accuracy: +/- 0.2 oz, 1 lb, 5 g. Quickly switch between pounds and kilograms with the touch of a button for immediate display results.