The Seca Sensa 804 has it all - it measures weight, body fat and water and Body Mass Index (BMI). The chromed electrodes on the Seca Sensa 804 show what the scale can do, as they are arranged to guarantee uninterrupted skin contact during measurement. It can also recognise each user. The one-time entry of each user's age, gender, height and fitness level is all that is required. The scale will do the rest all by itself. Technical data: 24 electrodes: for analysis of body fat and body water. Automatic user recognition for fast measuring results. Four memories: for practical multi-person use. Capacity: 150kg/330lbs/23 sts. Graduations: 100g/0.2lbs. Dimensions (WxHxD) 300 x 46 x 300mm. (NB: Suitable for home/personal fitness use. Not approved for medical use).