Tobacco and alcohol are highly profitable industries, taxed very heavily, and constitute a significant portion of our country's fiscal revenue. Consequently, the counterfeiting of tobacco and alcohol products is quite prevalent, especially with well-known brands of cigarettes and liquor, where the likelihood of counterfeit goods is even higher. For those who are particular about drinking, it becomes necessary to know whether the alcohol they're consuming is genuine or not. Of course, frequent drinkers may be able to taste the difference, but the average person would find it difficult to discern. However, now with this alcohol detector, one can clearly determine the authenticity of the alcohol. This is because the alcohol detector is equipped with a chemical composition sensor that can analyze the chemical makeup of the alcohol. Unfortunately, at present, it can only test six specific alcohol brands. Simply place this pen-shaped alcohol composition detector into a glass of wine, let it soak for 20 seconds, and the liquid crystal display on the detector will inform you of the components of the alcohol you're drinking. Currently, this device can only test the components of a few types of alcohol. If in the future it develops to the point where it can test all liquids, or even food components, its applications will surely become even more widespread.