This Rocker Potentiometer is a two-dimensional,tight PTZ controller which could do self reset left and right up and down for videos and photography.You can see that it is widely applied in dollying,cctv control system,measuring equipment,medical imaging system, automatic machine control,video editing and production equipment,industry and scientific instrument and so on. The product has two 10KΩ potentiometers and a spring-back system. You can get a 25 degrees in both X and Y directions. Connect one side of each potentiometer to ground, and the other side to a higher voltage and read the analog voltage off the middle. It’s great for robotics and other control interfaces.