The WM-547 Rotary controller is designed for a variety of different off-road uses. The controller can be adjusted arbitrarily between 0 degrees and 90 degrees for appropriate purposes, including engine speed, chassis module output and hydraulic pump control. The rotary controller is also environmentally friendly and has a seal up to IP67, and is highly resistant to electronic interference (SAE J1113), so it can be installed both inside and outside the cab.