And now, the best just keeps getting better! New “Super Tuff” ST platform features one-piece cast aluminum construction that is lighter, stronger and more durable with safe rounded corners and a recessed, non-skid rubber mat. New “Plug & Weigh” cable system connects the platform to the console with a standard USB cable. Should the cable ever be damaged, replacement takes only minutes and can be easily done by the scale user. The PS-6600 ST is powered by either its internal rechargeable battery or through a wall outlet with its AC adapter. The powerful rechargeable NiMH (nickel metal hydride) batteries are environmentally-friendly and provide a long life with more weighings per charge. This scale can be taken anywhere and precisely weigh anything from 0 to 500 lbs. to within 0.1 lb. Convenient, repeatable, accurate, and rugged, the PS-6600 ST is everything a portable scale should be. Calibration is rarely an issue; the PS-6600 ST is famous for maintaining calibration even through the heaviest use. Ideal for team sports, home health care, athletic training, and weight management, the PS-6600 ST is easy to transport, store, and operate. Without question this is one tough portable scale. Features • Pin point accuracy of 0.1 lbs • Powered by extended life rechargeable battery or 120V AC adapter • Quick insert/detach connections • Push-button calibration with any sure weight over 100 lbs. No tools needed! • Reinforced USB-grade molded cables • Quadruple strain gauge technology • Durable, lightweight air-craft grade aluminum construction • Industry-best 3 year warranty Specifications Capacity 500 lbs. (225 kg.) Accuracy ±0.1 lb. (0.1 kg.) Platform Size 16" x 18" x 1.75" System Weight 16 lbs. Readout Display .75" LED Power Source Rechargeable battery or 120V AC Turn-Off Condition 4 minutes of no use BMI Calculation No Construction Aluminum Portability Carry Warranty 3 years