Measures 7 fitness indicators including body fat %, BMI, resting metabolism, weight and more! The innovative Full Body Sensor is the only at-home body composition monitor that accurately measures your entire body. It uses 6 advanced sensors−2 for your hands and 4 for your feet. Clinically proven to be as accurate as expensive medical devices professionals use. Stores personalized information for up to four people and features guest mode. Memory lets you track your progress along the way. Uses four AA batteries (included).