Tanita UM-081 Body Fat & Body Water Monitor The UM-081 scale offers precise body analysis using FDA-cleared bioelectric impedance analysis (BIA) technology. In addition to weight measurement, it calculates body fat percentage and body water percentage by combining impedance readings with gender, age, height, and weight data. Monitoring body fat with the UM-081 is essential for understanding inner health and optimizing performance. Adequate hydration is crucial for overall well-being and peak performance, making the UM-081 an invaluable tool for maintaining healthy body water levels.