Keychain Breathalyzer

Brand: BACtrack
Model: BT-KC20
EAN: 0850167002917
Category: Gadgets & Tools
Price: $39.99  (127 customer reviews)
Dimension: 2.40 x 1.45 x 0.55 inches
Shipping Wt: 0.13 pounds. FREE Shipping (Details)
Availability: In Stock.
Average Rating: 3.2 out of 5 stars
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Product Description

The BACtrack Go Keychain Breathalyzer is compact, convenient, and provides blood alcohol content (BAC) results in seconds. A fully functional breath alcohol tester, BACtrack Go is equipped with an Advanced Micro Check alcohol sensor that determines BAC quickly and accurately. To use, simply wait 15 minutes after your last drink, power on, and breathe into its innovative folding mouthpiece. Your results are displayed in seconds-it's that easy. Everyone will want to test themselves whether you're at a party, bar, restaurant, or anywhere else alcohol is consumed. Learn how drinking alcohol affects your BAC and drink more responsibly. Cheers to good decisions.Response Time -5 Seconds.


  • QUICKLY & EASILY ESTIMATE YOUR BAC - Proprietary Advanced MicroCheck Sensor technology delivers reliable, accurate BAC results you can trust.
  • EASY TO USE - One button operation means you simply power on your Go keychain breathalyzer and begin testing in seconds. It's that easy!
  • TAKE IT WITH YOU ANYWHERE - The ultra-compact BACtrack Go breathalyzer keychain easily fits in a pocket or purse, making it a great portable breathalyzer for any occasion.
  • OPTIMAL BREATH CAPTURE - The innovative fold-out mouthpiece ensures only your breath goes into the alcohol tester, while other airborne pollutants are kept out.

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Top Reviews

Product arrived defective
by Leah Rogers (1 out of 5 stars)
September 19, 2018

This product arrived defective. I was weary to buy this because of the return policy, but a friend had bought the same model and recommended it. Hers worked perfectly. Mine came and wouldn't even function for a single blow. I tried three different batteries and every time I try to turn it on and use it the screen comes on and beeps for a few seconds max before turning back off. The screen shows a battery icon that is almost empty even with fresh batteries. And now they won't take it back or refund. Don't waste your money.
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Excellent unit-tested just fine!
by Shane Vaughan (4 out of 5 stars)
August 3, 2015

Tested against the other +$100 version and AlcoDroid app. Dead on! Works perfect. Read the directions and it will work perfect.
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AUNTIE AWESOME Says... Be smart (and popular) Get this, Gift this
by Amazon Customer (5 out of 5 stars)
October 21, 2016

SURELY SAVED ME FROM POSSIBLE CATASTROPHY, MORE THAN ONCE. I have one for myself and I have another for anyone that I may consider driving me home from anywhere! Order extra mouth pieces, because all your friends and even strangers love to know if they are ok to drive at the end of party night. Get it, gift it!
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love this. very accurate and good for knowing whether ...
by Sofia Aderer (5 out of 5 stars)
April 25, 2017

love this. very accurate and good for knowing whether or not that friend who says he's safe to drive actually is. not accurate if tested less than 20 minutes after your last drink, but that's every breathalyzer. handy to have it on my keychain too.
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So far, so good. Handy device to have.
by Amazon Customer (5 out of 5 stars)
September 7, 2018

I received this handy little device today and I tried it out before I had even a sip of any alcohol. It read at .00. After having three drinks, I waited as directed (20 minutes), blew again, and it read a .08. (I'm female, 5'6 and weigh 140). I let my friend who hadn't drank any alcohol blow into it after I blew the second time, and it read accurately for him (at .00). So far, the product seems pretty accurate and I have no complaints whatsoever. It's awesome to have an estimate of where I'm at regarding my blood alcohol content for a great price. I'll be gifting this to my friends as well.
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Not what it used to be!!!!!!!!!!!!
by Jessica Celata (1 out of 5 stars)
September 15, 2018

This is actually my second time buying the exact model. The first one was AMAZING, had NO ISSUES. Unfortunately, it is very difficult to see what is the BAC reading. Depending on the angle, it says 0.10 or 0.00. I am very disappointed with this breathalyzer; the quality does not seem to be as good as it used to be.
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Not accurate
by Amazon Customer (1 out of 5 stars)
September 20, 2018

Have tried it multiple times and it sucks. My boyfriend waited an hour after drinking and blew into the BAC after having a double shot of 151 run and a double shot of Malibu. His BAC came back 0 all 3 times
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Fun but Cheap
by Shawna (2 out of 5 stars)
February 12, 2018

Got this as a present for my brother and it worked well for an entire day before it just totally broke & stopped functioning
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Easy to use once you know how to use it.
by Amazon Customer (5 out of 5 stars)
August 25, 2018

It's nice being able to know, numerically, how drunk you are. Once you get how to use the device it's simple. It is, though, really hard to explain to other drunk people, when you yourself are drunk, how to use the device if you want them to test their BAC / if they want to test their BAC.

Works just fine though and was a worthy purchase.
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To be honest it works ppl who say it doesn't ...
by Vivian (5 out of 5 stars)
May 17, 2018

To be honest it works ppl who say it doesn't it's because you need to try it 2-3 times when it's inaccurate meaning when I got 0.00% at times or just blow harder and it's accurate no problem at all I use interlock breathalyzer so I have verified it worked perfectly by law in California

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