BACtrack - Go Keychain Breathalyzer - White

Quickly and easily estimate your BAC with this BACtrack Go BT-KC20 keychain breathalyzer, which features a fold-out mouthpiece that facilitates BAC calculations and readouts on an easy-to-read LCD screen. The ultracompact design simplifies portability.
Price Match Guarantee

Best Buy is dedicated to always offering the best value to our customers. We will match the price, at the time of purchase, on a Price Match Guarantee product if you find the same item at a lower price at a Designated Major Online Retailer or at a local retail competitor's store.

Here's how:
  • If you find a qualifying lower price online, call 1-888-BEST BUY and direct a customer service agent to the web site with the lower price, or when visiting a Best Buy store, one of our employees will assist you.
  • On qualifying products, Best Buy will then verify the current price to complete the price match.

Exclusions apply including, but not limited to, Competitors' service prices, special daily or hourly sales, and items for sale Thanksgiving Day through the Monday after Thanksgiving. See the list of Designated Major Online Retailers and full details.

Save $4
Was $29.99

Upgrade for $64

BACtrack - Mobile Smartphone Breathalyzer for Apple® iPhone® and Android Devices - White - Angle

See what you get with an upgraded model.

Compare Models
Cardmember Offers

Complete Your Purchase

BACtrack - Go Keychain Breathalyzer - White - Angle
Item you are currently viewing
See details
See details
Price for both items


What's Included

  • 3 mouthpieces
  • AAA battery
  • BACtrack Go Keychain Breathalyzer
  • Owner's manual

Ratings & Reviews

Overall Customer Rating:
84% of customers would recommend this product to a friend (210 out of 251)

Product Features

Advanced MicroCheck alcohol sensor

Quickly and accurately determines your BAC (Blood Alcohol Content), providing the results in seconds. Simply wait 15 minutes after your last drink, power the breathalyzer on and breathe into the mouthpiece.

3-digit LCD display

Showcases your BAC results in clear, easy-to-read detail.

Fast, efficient readouts

Keep you apprised of current BAC levels, enabling you to make well-informed decisions.

Folding mouthpiece

Enables simple portability when not in use.

3 included mouthpieces

Offer a hygienic way for friends and family to use the device to safely calculate BAC.

Compact design

Fits inside a purse or pocket and can be used as a keychain, making it easy to test your BAC while you're out and about.

Overall Customer Rating

3.9 (251 Reviews)

Product Features Mentioned In Customer Reviews

Product images, including color, may differ from actual product appearance.