6 Best Keychain Breathalyzers | March 2017
We spent 24 hours on research, videography, and editing, to review the top selections for this wiki. Driving under the influence of any intoxicant is never a good idea. While the compact keychain breathalyzers on this list should definitely not be relied upon to guarantee you are sober enough to get behind the wheel, they can provide an indication that it's probably wise to open up that app and order an Uber or Lyft to get home. Skip to the best keychain breathalyzer on Amazon.
The Greenwon Alcohol Analyzer has an effective test range between a BAC of 0.0 percent and 0.19 percent, though you should use the reading this unit provides as a guideline to help direct your behavior and not as an ironclad guarantee that you're sober enough to drive.
- great for novelty use
- affordable price point
- ergonomic design
The Vio Smartphone unit syncs with your iPhone or Android phone or tablet to provide you information about the amount of alcohol in the blood of the user. Its paired app removes ambiguity that other self-contained units can create, clearly displaying precise results.
- comes with drink log
- offers advice on intoxication levels
- estimates time to zero blood alcohol
The BACtrack Keyring Breath Alcohol Tester shares its results mere seconds after its user exhales, displaying the detected Blood Alcohol Content reading on its compact but crystal clear red-on-black LCD screen. You'll be able to read the numbers even after multiple drinks.
- available in several colors
- one-touch operation
- average of 75 tests per battery