MedWeigh MS-3300 High Capacity Medical Scale with Column, 660 lb x 0.2 lb by ScalesGalore. $264.95. The MedWeigh MS-3300 high capacity digital medical scale features a large easy-to-read LCD digital display (1.5 inches in height) and a water-resistant keyboard. This high capacity scale has four simple to use function keys: Weight Hold, Weighing Unit, On/Zero/Off, and Tare. This medical scale is powered by the included AC adaptor or rechargeable batteries.