water gauge

American  

noun

1. any device for indicating the height of water in a reservoir, tank, boiler, or other vessel.

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water gauge British  

noun

1. Also called: water glass.  an instrument that indicates the presence or the quantity of water in a tank, reservoir, or boiler feed

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Etymology

Origin of water gauge

First recorded in 1700–10

Example Sentences

Sensors measure how fast sediment passes along the river, just like the real water gauges floating in the Mississippi.

From Scientific American

Already this spring, the gravel beds that the sucker fish spawn in are dry and water gauges on Klamath River tributaries show the flow is the lowest in nearly a century.

From Washington Times

At least one water gauge in the park reached its highest level since 1962.

From Washington Times

We just don’t have the water gauges and other scientific infrastructure.

From Nature

Operators there encountered a similar problem, where one water gauge malfunctioned, and the other gave an accurate reading.

From New York Times