This sleek, accurate breathalyzer is the smallest on the market. Its modern, white and black design fits any style and doesn't look like an eye sore while attached on your key-chain.

Advanced MicroCheck® alcohol sensor determines BAC quickly and accurately; mouthpiece folds away to protect it while not in use. Proprietary sensing technology and a specially tuned algorithm, deliver accurate results unparalleled at this price point.

• Advanced MicroCheck^® Sensor Technology - Proprietary Advanced MicroCheck^® Sensor technology delivers reliable, accurate BAC results you can trust.
• Ultra-Compact Design - Fits inside a purse or pocket and can be easily used as a keychain.
• Optimal Breath Capture - The innovative fold-out mouthpiece ensures only your breath goes into the breathalyzer, while ambient air, fumes, and other airborne gases are kept out.
• One Touch Operation - Simply power on your BACtrack Go and begin testing in seconds.
• LCD Screen - BAC results are displayed on a bright blue, easy-to-read LCD display.
• Extra Mouthpiece Covers - Includes three additional mouthpiece covers, making it easy and sanitary to test your friends and family.