This scale was designed for reliable, accurate performance in a scale that is light and easy to carry. It has a remote head for easy reading at the station, on the wall, or in the practitioner's hands. The Body Mass Index (BMI) function saves time and its low power consumption requires battery changes only after 80,000 weigh-ins.Features: Capacity: 400 lbs. / 180 kg. Graduations: 0.2 lb / 100 gm. BMI Function. Dimensions: 3"H x 11 1/2"W x 11 3/4"D. Powered by 4-AA Batteries (Included).