Omron BF508 monitor uses hand and foot measurement for precise and reliable readings. It gives a painless and accurate total body reading--body weight (in kilograms), body fat percentage, and visceral fat percentage- helps to understand how efficiently body is working, helps to reach fitness and weight loss goals. BF508 is the perfect fitness tool to use any time in the comfort of our own home. Benefits: Painless and accurate total body reading Identifies normal body fat levels based on age and gender How to Use: Turn on the power. Select preferred units of measurement. Use the arrow key, press the SET key. Select personal profile key, press the SET key. Enter age, gender and height, press the SET key. While holding the display unit, step on the main unit and place feet on the foot electrodes with weight evenly distributed. When START appears on the display, extend arms straight at a 90° angle to body. Check the measurement results.