8430 Style: With Height Rod Features: -Digital physician scale.-Available without height rod and with height rod.-Waist high.-Selectable units.-Push button and keypad tare.-BMI.-Automatic display lock.-Capacity: 500 lbs x 0.2 lbs / 225 kg x 0.1 kg (selectable).-Platform size: 10.5" x 14.5".-Power source: 6 "C" size alkaline batteries or optional AC adapter. Dimensions: -Scale height: 37.5".-Display: 0.7" High contrast LCD.