I would like to know if there is a sensor that can monitor its alcohol content and displaying it to my LCD display.
Your answers would be a great help to my dreams. I'm a computer engineer taking my research Subject.
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There are relatively affordable devices (iSpindel and TILT) that continuously report specific gravity wirelessly. You can use the data to derive the alcohol content with a pretty good degree of accuracy.
It's not exactly what you asked for but it wouldn't be too hard to make it work the way you want.
There are sensors that do this. I am not personally familiar with their accuracy, maintenance or robustness.
I am aware of this type of device from Anton-Paar