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BACtrack - S70 Personal Breathalyzer - Black

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 Low Price 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.

Some exclusions apply. See the list of Designated Major Online Retailers and full details.

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    Rating Breakdown

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    Product Availability

    Special Offers

    Cardholder Offer

    What's Included

    • BACtrack S70 Personal Breathalyzer
    • 6 mouthpieces
    • 2 AA batteries
    • Case
    • Owner's manual

    Ratings & Reviews

    Overall Customer Rating:
    67% of customers would recommend this product to a friend (2 out of 3)
    bactrack.com Rating:
    (6 Reviews)

    Rating Breakdown

    (1 Review)
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    (1 Review)
    This BACtrack S-70 breathalyzer features FlowCheck technology for an accurate measurement of your blood alcohol content and provides a wide detection range of .000-.400%. Test multiple users with the included 6 individually wrapped mouthpieces.

    Product Features


    Do not use this product as a tool to determine whether you should operate a motor vehicle or equipment. Always have a designated driver when alcohol is being consumed.

    From our expanded online assortment; not available in all Best Buy stores

    4-digit LCD display

    Offers easy-to-read, accurate results.


    Requires a deep breath sample for reliable results.

    Wide detection range

    Measures blood alcohol content from .000-.400%.

    6 mouthpieces

    Allow you to test multiple users and are individually wrapped for sanitary storage.

    Compact design

    Fits easily in a pocket or purse for portability.

    Product Q&A

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