BACtrack Portable Keychain Breathalyzer

Quickly and easily tests breath for the presence of alcohol and provides blood alcohol content (BAC) estimate. The BACtrack Keychain Alcohol Detector is compact lightweight and offers an innovative folding mouthpiece design. It 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 .