Thumbwheel SwitchesA thumbwheel switch is a type of rotary switch that is operated by turning a small wheel or knob with the thumb. Thumbwheel switches are commonly used in a wide range of applications, including electronic devices, industrial control systems, and medical equipment. They are often used as an alternative to push-button switches, as they provide a more intuitive and ergonomic way to input data or control a device. Thumbwheel switches are available in a variety of different styles, including single-digit, dual-digit, and multi-digit models, to suit different types of applications and user preferences. They can be used to input numbers, letters, or other symbols, depending on the specific application.