Tanita's high capacity TBF-310 utilizes patented "foot-to-foot" BIA technology to make determining internal body composition a fast and accurate procedure. Features include a 600 lb. x .5 lb. scale capacity, extra-large platform, Adult, Child, and Athletic modes, "weight only" function, fast thermal printer and RS-232 port for computer interface. The 310 model prints out Fat Mass, Fat Free Mass, Fat %, Total Body Water, BMR and Desirable Ranges automatically, with up to 9 copies. Tanita's body composition analyzers are used independently, or they can be interfaced with a computer running Tanita's Health Management Software.