The listing, TEXAS INSTRUMENT CBL SYSTEM IN CARRYING CASE has ended.
The Texas Instruments Calculator-Based Laboratory System (CBL) is a portable and versatile data collection device for math and science. A wide variety of sensors, such as a Motion Detector, Dual-Range Force Sensor, pH system, Colorimeter, and Barometer, can be connected to the CBL interface. In this configuration the battery powered CBL could be uses a stand-alone data logger even outside the classroom for experiments. Calculator provided with batteries, cables and sensors. Sells for over $125 on amazon.