There are already plenty of fancy breathalyzers on the market. The Viseeo Doctor V1 is designed to turn your iPhone into a portable breathalyzer. It combines with an iOS app to track your drinking habits.
More gadgets like this: here
This device also works as a heart rate monitor and can even serve as a UV radiation detector. It requires no battery to operate either.
**Disclaimer: Our posts may feature aff links. As an Amazon Associate, we earn from qualifying purchases. Please read our disclaimer on how we fund this site.
