Detecto's portable low-profile healthcare scale is ideal for home healthcare. Its lightweight build and built-in carrying handle make transporting it between locations easy. A non-skid mad provides safety and assurance to the patient while being weighed. The remote indicator is capable of calculating Body Mass Index upon input of the patient's height. It can be locked into either pounds or kilograms upon initialization. The lock/releast key allows you to hold the patient's weight even after they have stepped off the scale. The RS232 and USB ports allow communication to printers and computers for data storage. This model also offers Wifi and bluetooth connectivity for even more connection options. This scale is legal for trade. This scale can be powered by either 6 C batteries or an AC adapter (both not included).