The Elma knob series serves the two-communications, medical, industrial, audio, military, and instrumentation markets. Focusing on the high-end market, the knobs have various specialty features such as unique shapes, a soft-touch feel, ergonomic design, etc. Elma’s collet knobs provide a more reliable grip on the switch shaft with metal “fingers” that tighten evenly around the shaft. This prevents slippage, and ensures that the shaft will not be marred or damaged, unlike knobs that use set-screws.
Elma offers knobs that are highly ergonomic, used in applications where the feel and control of the knob is critical. Various ergonomic designs are available to prevent slippage and a hard-rubber surface option for a soft, comfortable feel. Elma also offers a full line of high-performance rotary encoders and encoders.