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Customer Ratings & Reviews

Customer reviews

Rating 4.1 out of 5 stars with 507 reviews

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Rating by feature

  • Value

    Rating 4.1 out of 5 stars

  • Quality

    Rating 3.8 out of 5 stars

  • Ease of Use

    Rating 4.4 out of 5 stars

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85%would recommend to a friend

Customers are saying

Customers are positive about the Go Keychain Breathalyzer's accuracy, ease of use, and convenient size. Many find its overall performance appealing and consider it a good value for the price. The primary concern expressed by customers relates to the battery life of the device.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 16 Showing 301-320 of 507 reviews
  • Pros mentioned:
    Accuracy

    Rated 5 out of 5 stars

    Great

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great to be sure of your AC when out in the town having some brewski’s

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    great for low price

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Only used it a couple times but is great. Really convenient.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Good gauge

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It seems like it will give you a general idea of a blood alcohol reading. I am not sure how accurate it is, though.

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 5 out of 5 stars

    Get one you won't regret it

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I bought this for my college student....From what I have been told it works great.

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 5 out of 5 stars

    Great breathalyzer

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This thing is great. Good for parties or testing your kids!

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 5 out of 5 stars

    Helpful tool

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Let’s me know when it is safe to drive. i.e. _ BA of 0

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 5 out of 5 stars

    Fun and accurate

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Fun when you are around friends and it is pretty accurate as far as I can know

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    nice item

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I bought this as a Christmas gift and the person I got it for likes it. Not sure that its completely accurate but its still fun to play with.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    All Ways Know Your Limit

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It is very convenient and may save you a lot of time, money and your life!!!

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 5 out of 5 stars

    Did the job for us.

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The module worked perfect for us. Easy to learn and easy to use.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    great

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Clips to key chain. Easily used, and is always with your keys.

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 3 out of 5 stars

    great for whats its price is

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    does what its used for and has saved a few people I know from getting on road drunk

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 5 out of 5 stars

    Great product!

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great little product! It works in the end! It took a few tries and then it was consistent!

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 5 out of 5 stars

    Great for the price

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    My husband and I have used it and it is very accurate. I would recommend.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Interesting tool

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Fun little gadget to pass around at a party or group of friends at a bar. It is not super consistent but gives a good rough guess.

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 5 out of 5 stars

    safety

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    this item works very well I got it for my daughter

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Saved my butt!

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This little guy has definitely come in handy when I've been out and about!

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 5 out of 5 stars

    It does the job

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It will keep you in check. We bought 5 for friends

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Rated 5 out of 5 stars

    Nice accessory

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works well- smart purchase. Easy to store and use.

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 5 out of 5 stars

    Works perfect

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Good item, works perfect to find out my alcohol level!

    I would recommend this to a friend
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