Full Body Sensor Body Composition Monitor and Scale provides Full Body Sensing - a comprehensive understanding of your body composition to help you reach your fitness goals. Full body sensing is more accurate than measuring with feet alone. Easy to use the HBF-510W measures 5 fitness indicators including body fat visceral fat BMI skeletal muscle and body weight. FEATURES: Full Body Sensing provides a comprehensive understanding of your body composition to help you reach your fitness goals; Full Body Sensing with hand-to-foot technology is more accurate than foot-to-foot monitors; Measures 5 Fitness Indicators: Body Fat Percentage Body Mass Index (BMI) Skeletal Muscle Visceral Fat and Body Weight; 4 Person Profile; Easy on/off switch at base; Large LCD display; Retractable Cord; 4 "AA" batteries included.