Happy to hear that you didn't pay for it. When I ran a store I tried to talk people out of buying them, because they are difficult to use, and unreliable. At least, that's my opinion.
That web page has a great write-up on the vinometer. Basically put some wine in the reservoir, let 2-3 drops come through, and turn the vinometer upside down (thus spilling the rest of the wine wherever). Now hold it to the light or whatever in a struggle to read the silly thing.
Btw, I read somewhere that it doesn't work if there is residual sugar in the wine. I found it hard enough to read with red wine, that I never tried white wine.
Same for me. Bought one when I first started back in '07 and found out the same. Pain in the butt to use, hard to read and probably not even accurate. It resides in its box inside another box of unused items.
Correct me if I'm wrong, and I was once when I told my wife she was right and later found out I was the one that was right. Isn't the abv the only measurement the the dept of Weights and Measures the only measurement they allow an tolerance on?
Jon, have you ever really sat down and checked the numbers well cause I have found so many inconsistancies with mine that I threw it away. The higher the residual sugar the more it was off and i dont mean a finished sg of 1.015, I mean the difference between .996 - 1.000 If you use and like it thats great, this is what makes this hobby so great as everyone has and chooses their own way and style.