This new scale is ideal when replacing the old-fashioned balance beam doctor scales. It offers many great new features that are ideal for any medical or home setting such as a large base, large capacity and the time saving feature of super-quick, accurate weighing. The Health-o-Meter 500KL digital beam scale uses sophisticated micro-processing technology for highly precise results. Each precision scale is designed to be accurate, reliable and repeatable with features that make the weighing process simple, fast and convenient. Extra-large base is fully digital with no moving parts and is super-easy to step onto due to its low-profile 2.5 in. high base. Features 500 lb / 220 kg capacity w/ Body Mass Index (BMI) function, USB connection port and 4 ft cable, large 1 in. LCD, battery (6 -AA) or AC Power and wheels. 3 year factory warranty.