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2025-08-25 06:07:25 -

Why is the Blue Gauge Called a Compound Gauge: A Quick Answer

The blue gauge commonly referred to as a compound gauge occupies a unique position in the realm of instrumentation. Unlike typical pressure gauges that measure only positive pressures, the compound gauge is designed to read both positive and negative pressures (vacuum). This dual capability is the fundamental reason behind its name—“compound.” The term...

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