Calculator Based Ranger System 2... If you teach math physical science or physics you may want to consider the CBR 2. The CBR 2 collects distance velocity and acceleration data while connected directly to a TI calculator. The connection to the calculator is through the calculator link port or if you have a TI84 Plus or TI84 Plus Silver Edition the CBR 2 can connect to the calculator's USB port. When the CBR 2 is connected to the USB port of the TI84 Plus the EasyData application automatically starts and you are ready to collect data. This product ships in approximately 1 days
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