Proof by Milo Sensors just introduced a slim band that fits around your wrist like any of the fitness trackers, but instead of tracking your motions with an accelerometer, Proof reads alcohol molecules through your skin.
According to Proof, the enzyme-based electrochemical sensor converts alcohol into an electrical current, and is able to accurately display your blood alcohol content (BAC) level discreetly using its accompanying Android or iOS app.
In addition to tracking your current level, Proof can predict how drunk you’ll be later in the night. It can also predict when you’ll be sober and can let alert you when you hit a specific BAC level. So if you’re winding down at the bar and want to know when you’re sober enough to drive, punch it into the app and it will send you a notification to your device telling you you’re sober enough to drive.
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The app also has a friends feature that runs on invite only, so that you can track your loved ones that are out for the night and make sure they’re drinking responsibly
The CEO and founder Evan Strenk says that he wants to, “empower people to make educated decision about alcohol.”
According to Proof’s website, the band uses disposable cartridges to ensure, “reliable alcohol tracking for over 12 hours.”
The National Institute of Health dumped $100,000 into the project, and after two years of development and third-party testing against blood tests, IV injections and wearables, Strenk says Proof is comparable to consumer breathalyzers.
Milo Sensors plans to launch a crowdfunding campaign for Proof in 2017 with a target price of about $100 to $150, which relatively normal for the wearable market.