Vio - Smartphone Breathalyzers Landing Page - How It Works

December 01, 2014

How It Works


Breath into the BACtrack and results are sent wirelessly to your iOS or Android device.



See accurate reading and a ZeroLine® estimate of when your BAC will reach 0.00%.



Decide what comes next. Save your number? Test someone else? Switch to water? Hand over your keys?

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