To measure the SG (specific gravity) of your wash. For measuring the start and finish of fermentation - red line indicates fermentation is at completed SG.
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5.0
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BC
09/23/2020
Barry C.
AustraliaWash hydrometer
Excellent, easy to read and use.
JM
06/14/2017
James M.
Good item
Well calibrated and comparison with another's suggests it is accurate.