This Wristband Tells You Exactly When to Stop Drinking

Unlike a Breathalyzer, this handy device can read your BAC in real time, based on the ethanol molecules that escape from your skin. Sometimes when you’re out partying it can be hard to gauge exactly how drunk you actually are. This little bit of wearable tech could take the guessing out of the equation and keep drunk people out of cars and off roads. That can’t be a bad thing. Watch the video above to see how it works.

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This Wristband Tells You When to Stop Drinking