Powered by BACtrack's proprietary BluFire® fuel cell sensor technology, the all-new BACtrack C6 Keychain Breathalyzer is the smallest professional-grade alcohol tester ever created! The C6 offers BACtrack's new "Dual-Mode" operation. Choose "Standalone Mode" and your BAC results are delivered directly to a bright, easy-to-read OLED screen. Alternatively, choose "App Mode" and the BACtrack C6 seamlessly pairs with your smartphone via Bluetooth. Using the free BACtrack App, you can quickly and easily estimate your BAC, track your results over time, and with ZeroLine®, estimate when your BAC will return to 0.00%. You can even call an Uber™ directly from the App if you've had too much.

Perfect for any social situation, from happy hour to dinner parties, the ultra-portable BACtrack C6 keychain breathalyzer will help you and your friends drink smarter and make better decisions while drinking.

• Advanced BluFire® Fuel Cell Sensor - The same professional-grade technology trusted by hospitals, clinics, and law enforcement, and offers the highest level of accuracy and consistency.
• Ultra-Portable- The smallest police-grade breathalyzer ever created, the C6 is roughly the size of a 9V battery, weighs just 1.5oz and fits on your keys!
• Optional Wireless Connectivity - Wirelessly connects to your Apple iPhone, Samsung or Google Android smartphone . See the full list of compatible devices below.
• ZeroLine® Technology - Estimates when your BAC will return to 0.00%, empowering you to make smarter decisions while drinking.
• BACtrack Companion App - The free BACtrack app saves and tracks BAC results over time and can even help you call an Uber if you've had too much.
• Warranty - All BACtrack breathalyzers are backed by a full one-year warranty, when purchased from an authorized retailer. Click here for warranty information.

• BACtrack C6 Keychain Breathalyzer
• Mouthpieces x3
• AAA Battery x1
• Instruction Manual
• One-year Limited Warranty

• Dimensions 2.21 x 1.875 x 0.66 inches
• Weight 2.0 oz (56g)
• Mouthpieces 3 included
• Battery 1 AAA battery, included
• Battery Life 250 Tests
• Sensor Technology Advanced BluFire® Electro-chemical fuel cell
• Warm-up Time About 10 seconds
• Blowing Time 5 seconds
• BAC Range 0.000-0.300% BAC
• Warranty 1 Year

• Apple iPhone 5S, 6, 6 Plus, 6s, 6s Plus, SE, 7, 7 Plus, 8, 8 Plus, X, XR, XS, XS Max, SE, 11, 11 Pro, 11 Pro Max, 12, 12 mini, 12 Pro, 12 Pro Max, 13, 13 Mini, 13 Pro, 13 Pro Max, 14, 14 Plus, 14 Pro, 14 Pro Max
• Apple iPad 3, 4, iPad Air 1, 2 & 3, iPad Pro and Mini 1, 2, 3 & 4
• Apple iPod 5th generation and higher
• Galaxy S3, S4, S5, S6, S7, S7 Edge, S8, S8+, S9, S9+, S10, S10+, S20, S20+, S21, S21+
• Nexus 5, 6, 6P, Pixel, Pixel XL, Pixel 2, Pixel 2 XL, Pixel 3, Pixel 3 XL, Pixel 4, Pixel 4 XL, 5