Dial
A dial was a type of device.

On the body function panels used aboard  starships in the 2260s, there was one dial for each of the six health functions being measured. Each dial was a fixed scale with a moving pointer.

In 2265, tapping into his growing extrasensory perception powers, Gary Mitchell manipulated the dials on the panel monitoring him, so that they would show different measurements. When Gary put himself into a death state for twenty-two seconds, all dials showed him as "dead" with the pointers at the bottom of the scales. When he revived himself, the pointers returned to normal. ()

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Technology