water gauge

English Thesaurus

1. gauge for indicating the level of water in e.g. a tank or boiler or reservoir (noun.artifact)

hypernym	:	gage, gauge,
definition	:	a measuring instrument for measuring and indicating a quantity such as the thickness of wire or the amount of rain etc. (noun.artifact)

hyponym	:	water level,
definition	:	a water gauge that shows the level by showing the surface of the water in a trough or U-shaped tube (noun.artifact)