We sell multiple motion detectors. The motion detectors we sell are very similar and use the same ultrasonic technology. The choice of which to buy depends primarily on the other equipment you will be using to collect data.

Go Direct Motion Detector
Go Direct® Motion Detector (GDX-MD)

    This motion detector connects directly to your mobile device, Chromebook, or computer using our free Graphical Analysis 4 app–no additional equipment or software purchases are necessary. Go Direct Sensors can be used wired via USB or wirelessly via Bluetooth. A rechargeable battery is pre-installed. This is the best choice for new users who have no interfaces, or who are using mobile devices in the classroom.

Motion Detector
Motion Detector (MD-BTD)

    This is the most popular motion detector we sell . To collect data with this motion detector, you need to connect it to a Vernier interface. If you already own, or are planning to purchase a Vernier interface, the Motion Detector is mostly likely the sensor for you. Use this sensor with Logger Pro 3 or Logger Lite software, LabQuest or LabQuest 2 handhelds, or Graphical Analysis 4 on Computer or Chromebook. It ships with a motion detector cable.

Go!Motion
Go! Motion (GO-MOT)

    This motion detector is a USB-only direct-connect sensor for use with Logger Pro 3 or Logger Lite software, LabQuest or LabQuest 2 handhelds, or Graphical Analysis 4 on Computer or Chromebook. In addition, the Go!Motion can be connected to a CBL, CBL 2, LabPro, LabQuest Stream, or LabQuest Mini (using a motion detector cable, sold separately).

Texas Instruments CBR 2
CBR 2 (CBR2)

    If you want to connect a motion detector directly to your TI graphing calculator, without the use of an interface, the CBR 2 is the option for you. It connects directly to a TI-73 Explorer, TI-82, TI-83, TI-83 Plus, TI-84 Plus, TI-86, TI-89, TI-92, TI-92 Plus, TI-Nspire, TI-Nspire CAS, or TI Voyage 200 calculator. In addition, the CBR 2 can be connected to a CBL, CBL 2, LabPro, LabQuest, LabQuest 2, LabQuest Stream, or LabQuest Mini (using a motion detector cable., sold separately). The CBR 2 comes with an I/O cable and mini-USB cable for connecting to calculators.

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What motion detector should I buy that will work with both calculators and computers or Chromebooks?