The Escali Complete Health Body Composition Scale features advanced weighing technology that provides a high-tech analysis of the user’s health and fitness level. The Instant-on and Automatic Profile Selection features ensure a user-friendly hands-free operation. Advanced Bio-electrical Impedance Analysis (BIA) technology sends an imperceivable electronic signal through your body to calculate your body fat, body water, muscle mass and bone density. (Do not use this scale if you have a pacemaker or use any other electronic personal medical device. The tempered safety glass platform measures less than 1 inch thick, giving the scale a low center of gravity and excellent stability. The scale will automatically recognize you and calculate your body composition based on your weight measurement, a bioelectrical impedance analysis and personal user profile.