"Step-and-Read" technology - No need to tap or switch on the scale. Immediate readings as soon as you step on the scale. Don"t worry about scratched floors with the non-slip feet. * Highest levels of accuracy and precision through the most stringent engineering standards.Using technology from Germany, this scale utilizes four of the latest-version, high-precision sensors. * Accurate, consistent measurements up to 400 lb (180 kg). Graduation increments of 0.2 lb (0.1 kg). Available units of measure: lb, kg, and st. * Auto-Calibration for speed and convenience and Auto-Shut-Off technology to conserve energy. Powered by 2 AAA batteries (batteries included). Low Battery and Overload Indication - Backlit LCD display. * The thickest tempered glass in the current market, 6mm, provides exceptional sturdiness and safety. Large 12" x 12" platform for comfort and ease of use.