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A tattletale gauge is a visual indicator, often found on equipment or machinery, that shows when a specific condition has been met or exceeded, such as temperature or pressure limits. It typically uses a colored marker or a dial to indicate when the threshold has been breached, serving as a warning sign that can help prevent damage or unsafe conditions. The term "tattletale" implies that it alerts operators to issues that may otherwise go unnoticed.

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∙ 1y ago

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