Hydrometer for determining coolant fluid antifreeze concentration

摘要: A hydrometer for determining coolant fluid antifreeze concentration includes a housing having pair of spaced openings inflow and outflow into from the housing, transparent view dome mounted in flow communication with identical sets float balls different specific gravities, longitudinal channels defined along opposite portions interior thereof containing movement relative to visual observation exterior dome, dam between capable obstructing path directly so as cause deflection therein.