The model PD300MHR features weight and height measurements for accurate calculation of body mass index. The LCD display provides easy-to-view 1 inch (25 mm) high readouts at a comfortable height of 48 inch (122 cm). Built-in wheels for fast transport and a wide 12.5 W x 13 D x 3.3 H inch (32 W x 43 D x 8.3 H cm) platform. Six AA batteries (not included) or optional AC power adapter. 0-220 lb x 0.1 lb (0-100 kg x 50 g) 220-550 lb x 0.2 lb (100-250 kg x 100 g) capacity. OIML EC Class III model available