Features a large, stable, low-profile platform that works on any flooring including carpeting. The Touchless Start feature acquires a patient's weight in as little as two seconds without any buttons to press. The Weight Lock feature allows an accurate weight to be held regardless of a patient's motion. The Reweight feature allows a second weight to be acquired while the patient remains on the platform Optional USB and RS-232 communications options allow the recording of a patient's weight and BMI value into a PC based Excel spreadsheet with the Excelerator software. 500 lb. maximum capacity. BMI calculator. Six AA batteries . Two-year battery life. Three-year warranty.