The Platform Scale with Oversized Platform, model SR453L, is a chair scale designed for use by individuals with balance disabilities or lower extremity disabilities. This scale features a 16-character digital liquid crystal display (LCD) with weight displayed either in pounds or kilograms. The platform can also be used as a stand-on scale. POWER: Uses 110 or 220 volts alternating current (AC), 50 to 60 Hertz. DIMENSIONS (HxLxW): 1.5 x 24 x 36 inches. CAPACITY: 1,000 pounds. WARRANTY: Two year limited warranty.