With a weight capacity of 660 lbs, the Seca 664 Electronic Collapsible Wheelchair Scale makes it easy to weigh even heavy patients who are in wheelchairs. The integrated pre-TARE function determines in seconds the net weight of the patient utilizing internal weight memory. The swiveling LCD display with large digits is easy to read both for the patient and for the medical professional. This wheel chair scale folds quickly and is convenient to move using its transport castors. The secure side rails give additional safety.