Question: what is wii u sensor bar?
Answer: Wii U sensor bar. The Wii U sensor bar is a bundled Wii U accessory that helps determine where the Wii U GamePad and Wiimotes are pointing, both in terms of side to side movement and position, but also in depth movement. The Wii U sensor bar is the same design that's used in the Wii, and operates the same way.