The Dual-Range Force Sensor is the newer, better, less expensive replacement for the older Student Force Sensor. The Dual-Range Force Sensor is designed to easily connect to a ring stand or a dynamics cart. In addition, it also has a broader range of forces that can be measured. The Student Force Sensor can also be connected to a dynamics cart, but only with the help of an additional adapter. The two sensors also are physically much different in appearance and how they function.