Input for a temperature gauge can be handled by the screen on this page. By moving a finger across the gauge, the user can move the dial to the required setting. As that is done, the actual number is shown on the digital display at the bottom. There is a decimal point between the third and fourth digits. No typing is required by the operator.
The dial image and background was taken from the picture of a panel of gauges from a skid mounted diesel engine.
Many thanks to Ken Oglesby of Impact Technologies for supplying the picture.
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