Go Direct® Rotary Motion Sensor

The Go Direct Rotary Motion Sensor measures angular motion. It connects via Bluetooth® wireless technology or via USB to your device.

SKU: GDX-RMS Categories: , ,


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Monitor angular motion easily and precisely with the Go Direct Rotary Motion Sensor, which connects wirelessly via Bluetooth® or wired via USB to your device. The wireless connection eliminates the cables that can get caught and tangled during rotational investigations.

  • Determine position, velocity, and acceleration of objects in angular motion.
  • Measure angle increments as small as 0.25°.
  • Investigate rotational dynamics, conservation of angular momentum, pendulum motion, polarization of light, and more.

Rechargeable Battery—Ready When You Are

The robust rechargeable battery offers long battery life and provides always-ready operation when using the sensor wirelessly. Monitor battery life directly from our free Graphical Analysis 4 app or LabQuest 3 App. Should the battery run low, simply connect the sensor to the charging cable and keep on collecting—no interruptions or inconvenience to you or your students.

Wired or Wireless—The Flexibility to Choose

Our Go Direct sensors connect 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® wireless technology, allowing you to choose the solution best for your classroom or laboratory.

WARNING: This product can expose you to chemicals, including chromium, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, see www.P65Warnings.ca.gov

Resolution: 1° or 0.25°
Optical Encoder: Bidirectional, quadrature encoder
Maximum Speed:30 rev/s at 1° resolution
7.5 rev/s at 0.25° resolution

3-step Pulley: 10 mm, 29 mm and 48 mm groove diameter, 55 mm with O ring in groove
Connections:Wireless: Bluetooth
Wired: USB

Go Direct Rotary Motion Sensor
Thumb screw
3-step pulley and mounting screw

Rotary Motion Motor Kit (MK-RMV)
Rotational Motion Accessory Kit (AK-RMV)

Go Direct® 300 mAh Replacement Battery (GDX-BAT-300)
Micro USB Cable (CB-USB-MICRO)
Rotary Motion Sensor Replacement Parts Kit (RMV-RPK)
Rotary Motion Sensor Replacement Pulley (RMV-PULLEY)

User Manual: https://www.vernier.com/manuals/gdx-rms/
Warranty: 5-year limited warranty (1 year on battery)
FAQ: https://www.vernier.com/til/4051/


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Our products compliment your teaching and help your students engage with key STEM concepts.

Educational Standards

Our products support provincial requirements for NGSS, AP, and more.