CBR 2™

The CBR 2™ motion sensor is TI’s answer to an easy, affordable data collection device! Designed for teachers who want their students to collect and analyze real-world motion data, such as distance, velocity and acceleration. Great for algebra through calculus and statistics, physical science and physics.

Key Features

CBR 2 motion sensor capabilities and highlights:

  • Includes 5 sample classroom activities for math and science
  • Pivoting sensor head for easy positioning 
    It will measure distance, velocity and acceleration – up to 200 samples per second!
  • Upgraded design and color
  • USB connectivity to the TI-Nspire™ family of handhelds, TI-Nspire™ family of software, and TI-84 Plus family of graphing calculators
  • Record data from 15 cm (5.9 in.) to 6 m (19.7 ft.)
  • Sensitivity switch for normal and track modes
  • Use with dynamic tracks, coffee filters, graph match, ball-toss and other activities
  • Improved real-time graphing

Compatible with the following calculators:

  • TI-84 Family
  • TI-Nspire™ Family

CBR 2 motion sensor system includes:

  • CBR 2 sonic motion detector
  • USB CBR 2-to-calculator cable (for use with TI-84 Plus family calculators)
  • Extended length I/O cable, for connecting to calculator input/output port
  • 4 AA batteries
  • Guidebook: Getting Started with the CBR 2

CBR 2™ Specifications

Built-in functionality

  • Pivoting sensor head (0o – 180o).
  • Measures object distance from 0.15 m – 6 m (5.9″ – 19.7 ft).
  • Compute 1st and 2nd derivatives (velocity and acceleration) on collected distance data.
  • Rugged construction: designed to withstand classroom use.
  • Lightweight and comfortable hand-held operation.
  • Versatile mounting options with standard camera tripod mounting socket and removable multipurpose clamp which accommodates surfaces of 0″ – 2″ thickness.
  • Self-contained application programs are multipurpose and menu-driven, offering simplicity for the novice and flexibility for the accomplished user.
  • Status indicators: red/green visible; dual-tone audible (can be disabled).
  • Choice of units: feet or meters.
  • Variable sampling interval: .05 sec – 1500 sec.
  • Temperature compensation available for enhanced accuracy.
  • Real-time distance, velocity, and acceleration.
  • Data smoothing options: light; medium; heavy.
  • Triggering options: calculator ENTER key; CBR TRIGGER button; time delay.
  • “Repeat Sample” option uses existing parameters.
  • “Easy Sample” option quickly initiates a sample using default settings.
  • Operates detached from calculator after setup.
  • Input/output port for direct communication with TI-73 Explorer™, TI-82,TI-83, TI-83 Plus, TI-84 Plus, TI-84 Plus Silver Edition, TI-84 Plus C, TI-85, TI-86, TI-89, TI-92, and TI-92 Plus.
  • USB Port for direct communication TI-84 Plus, TI-84 Plus Silver Edition, TI-84 Plus C, TI-Nspire™, TI-Nspire™ CX
  • Send data and graphs from calculator to a computer via TI-GRAPH LINK™.
  • Operates as a CBL/MBL motion probe.
  • Operates with CBL (SONICchannel) programs.
  • User Guide with classroom-ready math/science activities for grades 4 through 12.


  • Four AA batteries included.
  • Six-inch unit-to-unit link cable included.
  • CBL 2™ User Guide with classroom activities included.
  • TI Resource CD with Technical Reference included.
  • Size: 8.5 x 3.4 x 1.1 inches (L x W x H).
  • Weight: 8.3 ounces (without batteries).