Alcohoot ($100) turns your smartphone into a Breathalyzer in one easy step. Regardless of size, shape, gender, or ethnicity, no two people have the same reaction to alcohol. Until recently, the only ways to track your BAC was either with a weight/drink estimate chart, or to find yourself in a situation where you had access to one of the $5000 units the police use. One option yields results barely better than a guess, and the other… Well, at that point it’s probably a bit too late in the game anyway. With Alcohoot you can have accuracy comparable to the units used by law enforcement, with the freedom that comes with the chart.

Using Alcohoot is as easy as plugging the FDA registered fuel cell sensor into your phone’s headphone jack and blowing. That’s it! What makes this device even better is the app helps you to document and organize the information you put in, helping you to build a bigger picture about your drinking habits. Alcohoot tracks your consumption, helps you set limits, has a morning quiz to note how you feel, and it can even call you a cab. It’s honestly difficult to try and imagine how this contraption could be more helpful—aside from maybe putting a glass of water by your bed at the end of the night.

Alcohoot a 2014 Red Dot Design award winner, and can be purchased in black, white, or red.