The new 2nd generation Ozeri Precision Bath Scale with auto calibration technology makes monitoring your weight easy, right out of the box. Updated with new sensor technology, the 2nd generation Ozeri Precision Bath Scale boast weighing precision of a mere 50 grams, equaling 0.05 kg/0.1 lbs – a 100% improvement from the 1st generation’s 0.1 kg/0.2 lbs graduation. It also boasts a new maximum weight capacity of 200 kg or 440 lbs. The Ozeri Precision Bath Scale is newly enhanced with a handy Tare button that allows for quick and easy weighing of your infant, pet or luggage item, while in your arms. It also features a convenient unit button that instantly changes the unit of measurement from pounds to kilograms and optionally British stones. With Step-on Activation, weight measurements are displayed upon stepping onto the scale, with no tapping required to turn on or activate the scale. The new 2nd generation Ozeri Precision Bath Scale with 50 gram Sensor Technology and Infant, Pet & Luggage Tare is durably made with impact resistant tempered glass, and features an easy-to-read LCD screen. It turns off automatically to conserve battery life, and runs on 2 AAA batteries (included). Your Satisfaction is 100% Guaranteed.