The new Ozeri Precision Digital Bathroom Scale features auto calibration technology that makes tracking your weight easy, right out of the box. With the latest generation of Step-on Activation, your body weight is displayed immediately upon stepping onto the scale, with no tapping required to turn on or activate the scale. The Ozeri Precision Digital Bathroom Scale accurately displays results in increments of 0.2 pounds or 0.1 kilograms on its easy to read widescreen LCD, and uses 4 G sensors to capture weights up to 400 lbs or 180 kg with industry leading accuracy. The Ozeri Precision Digital Bathroom Scale also boasts a convenient unit button that instantly changes the unit of measurement from pounds to kilograms and optionally British stones. The Ozeri Precision Digital Bathroom Scale utilizes an oversized platform, impact resistant tempered glass, and durable construction. It is designed with accuracy, convenience and ease of use in mind. It also turns off automatically to conserve battery life, and runs on 1 Lithium 2032 battery (included) for the best in performance. Your Satisfaction is 100% Guaranteed.