The Cardinal Scale-Detecto Baby Scale is a dependable and portable scale that features easy-to-clean polystyrene trays that cradle babies securely. The scale has a high contrast LCD display with auto zero, auto shutoff, and push button tare. This light and attractive scale is powered by 6 AA size alkaline batteries, making it highly portable. Specifications . Capacity: 130 lb x 0.1 lb / 59 kg x 0.05 kg.. Tray Dimensions: 22 W x 14.75 D x 4.5 H 559mm W x 375mm D x 114mm H - washable polystyrene.. Overall Dimensions: 37.5 H x 22 W x 21 D 950mm H x 559mm W x 530mm D.. Display: .7/18mm high-contrast LCD.. Power: 6 AA size alkaline batteries or optional AC adapter. Features . Easy-to-clean polystyrene trays.. High contrast LCD display.. Auto zero, auto shutoff, and push button tare.. Light and attractive design.. Battery-powered for portability.