A body fluid management device used with an absorbent article is disclosed. According to the invention, the component comprises a substrate composition on a nickel basis with an aluminum proportion of greater than 4. In addition, the present invention can utilize the communication capabilities of impulse radio technology to enable secure communications to take place between an athlete and their teammates, fans or coaches. A baseline load current determined under the present temperature and input voltage is retrieved and used to determine a total leakage current. Moreover, the invention may be used for the removal of components from a sample fluid that vary in size.