– Primary Test: Press the power button on the sensor to turn it on. The red LED should be flashing. Start the data-collection app and select the sensor from the list of available sensors. The green LED will be flashing. Rotate the axle to verify that the sensor readout changes.

-Minimum software version: Graphical Analysis 4

Will my Go Direct Rotary Motion sensor fit into the Polarizer/Analyzer equipment?
What is the highest rate of rotation for the Rotary Motion Sensor (standard and Go Direct)?
What are the dimensions of the 3-step pulley/wheel on the Rotary Motion Sensor?
With which rotary motion sensors does the Vernier Rotational Motion Accessory Kit (AK-RMV) work?
What are the moments of inertia of the disks included in the Rotary Motion Accessory Kit?
How do I measure linear position with a GDX-RMS in Graphical Analysis or Graphical Analysis Pro?
I can't get my accessories to attach to the Go Direct Rotary Motion Sensor.
What are some experiment ideas I can do with a Rotary Motion sensor?

Optical encoder: Bidirectional, quadrature encoder, 360 cycle per revolution
Resolution: 1 degrees or 0.25 degrees
Maximum speed: 30 rev/s at 1 degree resolution; 7.5 rev/s at 0.25 degrees resolution

If the sensor can be turned on when connected by USB but not when disconnected from USB, it is likely that the battery just needs to be charged. In this case, charge the sensor for several hours and try again. If, however, the sensor won’t turn on regardless of whether the USB cable is connected or not, and you are confident that the USB cable is good by having tested it on another sensor, then the battery has likely reached its end of life and can no longer hold a charge. In this state, the sensor cannot be used even if connected by USB, so the battery will need to be replaced. The rechargeable battery in this sensor is covered by a one year warranty but should last two to five years in typical use. Note that if the battery is less than one year old and the sensor cannot be turned on even when connected by a working USB cable, another possibility is that the USB port is bad. In this case, contact Vernier technical support for assistance. 

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