Travel Gadget: Smartphone Breathalizer

Compatible with iPhone and Android devices, the BACtrack Vio Smartphone Keychain Breathalyzer is a fun and affordable way to estimate your Blood Alcohol Content (BAC). The gizmo is shaped like a USB flash drive and connects to your smartphone via the free BACtrack app. Be aware though, this breathalyzer doesn’t have a professional-grade sensor integrated, so don’t use it to judge whether or not you are sober enough to drive.

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