Number Wheel
Type: component
PROBLEM
Voice input is not always appropriate and the operator needs a way to enter numbers and navigate the display manually.
SOLUTION
The Number Wheel is a miniaturized rotary encoder wheel protruding 2 millimeters from the side of the Rubberized Sleeve, providing a tactile scroll input for navigating measurement history, entering numeric values digit by digit when voice input is disabled or insufficient, and adjusting display settings. The wheel has 20 detent positions per full rotation with a click-feel at each detent for gloved operation feedback. Clockwise rotation increments values and scrolls forward through history. Counter-clockwise decrements and scrolls back. A center-press function on the wheel confirms a selection or saves the current display value to storage. The wheel is the component most likely to be complained about during the first week of use and the component most missed when operating a pencil without one afterward. It is rated for outdoor use and has been tested under conditions the engineering team classified as aggressive and the field testers classified as normal.