This low profile precision scale, the UC-321P, can automatically store 31 weight measurements to be either or automatically uploaded to a PC. Our New "smart sensor" for superior weight control can detect tiny 50g increments. We provide a free Weight Diary (Windows TM software) to help you plan a healthier lifestyle. Features UC-321P - 50g resolution / Maximum capacity of 150kg UC-321PL - 100g resolution / Maximum capacity of 200kg Target weight setting 31 built-in memory function Standard un-directional RS-232C BMI standard calculation Ultra low profile (35mm) The UC-321P is a precision personal health scale capable of accurately displaying sensitive changes in body weight, by as little as a 50g (321PL : 100g) increase or decrease, and sending the data to your PC for you to view and record. With the connector and software provided, and your PC switched on, the UC-321P automatically sends your weight data to your PC. The UC-321P is the only personal health scale capable of meaningful measurements and with its PC connectivity you can also keep track of your own, or family, weight history. For those who want the best the UC-321P and ‘Weight Diary’ software combination has no rival.