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The BACKTRACK Keychain Alcohol Detector is one of the smallest breathalyzers ever designed. It uses an advanced alcohol sensor to quickly and easily estimate a user's Blood Alcohol content(BAC). Simply blow through the flip-up mouthpiece and an estimate of BAC is displayed in under 5 seconds - it's that easy! Take it anywhere and test anyone. Learn how drinking alcohol affects your Blood Alcohol Content and always make smart, informed decisions.
Folding mouthpiece design - sanitary and easy to share.
Compact and easy to carry; use as a keychain.
Highly accurate - contains a semi-conductor oxide sensor.