This is the digital scale that monitors the weight, body fat, body water percentage, body mass index (BMI), and bone mass for up to four people. It displays all five metrics simultaneously on the 2" LCD screen for simple, instant reference. Stainless steel electrodes on the scale's surface generate a harmless electrical impulse (Bioelectrical Impedance Analysis) to obtain readings, a method proven to be more accurate than the body mass index method used by typical scales. The scale has a sturdy impact-resistant glass surface, 400-lb. capacity, and it displays weights in 0.1-lb. increments. Includes a lithium coin cell battery. Not for use by those with pacemakers. 12 1/4" L x 12 1/2 W x 1" H. (4 lbs.)