About this item:
The V5 Rotation Sensor measures shaft rotational position, total rotations and rotation speed.  The rotational position is measured from 0° to 360° with a 0.088 accuracy. The angle is determined absolutely and is not lost when the robot is powered off.  The zero position can be set on the dashboard or by code. Rotations is the number of revolutions forward or reverse, and can be reset to zero as needed. Rotation is not stored and restarts at the current angle on each program execution. Shaft speed is measured in degrees per second.
This sensor is compatible with 1/8” and 1/4” standard VEX shafts.