BacTrack Vio Breathalyzer

BacTrack Vio Mobile Alcohol Breathalyzer

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$69.99 $59.99
(You save $10.00)
1.50 LBS
Calculated at Checkout

BacTrack Vio Alcohol Breathalyzer Test 

*BACtrack collects California Sales Tax on all orders shipped to California. If applicable, the California sales tax fee will not be shown in the total when you have completed checkout. This will be added to your order when processed.

The ultra-portable BACtrack Vio transforms your smartphone into a breathalyzer. Quickly and easily estimate your blood alcohol content (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 BACtrack App if you've had too much. Features wireless Bluetooth connectivity, innovative tracking, personalization, and Apple Health integration tools. Compatible with most iPhone and Android devices. Perfect for BAC testing on the go, the Vio fits inside a purse or pocket and can be used as a keychain.

Core Features

  • Advanced MicroCheck® Sensor - 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.

  • Bluetooth Connectivity - Wirelessly connects to your iPhone or Android device via Bluetooth

  • 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.

  • Compatibility - Compatible with most iOS and Android devices. See full list below.

  • Warranty - All BACtrack breathalyzers are backed by a full one-year warranty.

BACtrack Vio

With its ultra-compact keychain design and it's innovative flip-up mouthpiece, the BACtrack Vio is our smallest smartphone breathalyzer yet. Powered by our MicroCheck Sensor Technology, the Vio delivers reliable, accurate BAC results, anywhere you go

How It Works

1. Breathe

Breath into the BACtrack and results are sent wirelessly to your iOS or Android device. 
2. See
See accurate reading and a ZeroLine® estimate of when your BAC will reach 0.00%. 
3. Decide
Decide what comes next. Save your number? Test someone else? Switch to water? Hand over your keys?

Guess Your BAC

Gives you the opportunity, before you test, to guess your BAC level. Compare your perception to actual numbers, and see whether your guesses get better over time. 


Allows you to track and attach notes or photos to your results. What you drank and ate, who you were with, and how you felt; personalize results to make more meaningful. 

Wireless connectivity

Bluetooth enables a simple connection between BACtrack and your device so you don’t have to breathe into your phone, and you can see the app’s prompts and results as you blow.


Estimates when you will likely be sober, based on your last reading.

Apple Health

Integrates seamlessly with Apple Health so you can see your total health picture and assess how alcohol may influence factors such as sleep and activity level.

Apple Watch

Sends accurate results straight to your wrist. Apple Watch features include Active ZeroLine™, which offers a continuous countdown to 0.00% BAC available at a glance.

Technical Specifications

  • Dimensions 0.95 x 2.85 x 0.65 inches
  • Weight 2.0 oz (57g)
  • Mouthpieces Fold-out; 3 included
  • Battery 1 AAA battery, included
  • Sensor Technology Advanced MicroCheck®
  • Warm-up Time About 10 seconds


Mobile Alcohol Breathalyzer Test Keychain

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