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BACtrack Go Keychain Breathalyzer (White) | Ultra-Portable Pocket Keyring Alcohol Tester for Personal Use

3.8 3.8 out of 5 stars 5,637 ratings
$39.99 $39.99 per Count
1
White
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Purchase options and add-ons

  • 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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BACtrack Go Keychain Breathalyzer (White) | Ultra-Portable Pocket Keyring Alcohol Tester for Personal Use
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From the brand

Previous page
  2. BACtrack Logo

    Founded in 2001, BACtrack is one of the pioneers of the personal alcohol tester industry. Since then, BACtrack has grown into one of the global leaders in the alcohol testing space, providing some of the most accurate and affordable breath alcohol testing devices and software on the market.

    Designed and engineered at their headquarters in San Francisco, CA, BACtrack breathalyzers are now sold in over 20,000 stores and 25 countries worldwide.

  3. BACtrack C6 Keychain Breathalyzer
    BACtrack S80 Breathalyzer | Professional-Grade Accuracy | DOT & NHTSA Approved | FDA 510(k) Clear...
    BACtrack Keychain Breathalyzer (Black) | Ultra-Portable Pocket Keyring Alcohol Tester for Persona...
    BACtrack C8 Breathalyzer | Professional-Grade Accuracy | Optional Wireless Smartphone Connectivit...

    #1 Rated Breathalyzer Brand

    Visit the Store

  4. BACtrack C6 Keychain Breathalyzer

    Why wouldn't you want to know?

    "Owning a BACtrack doesn't make you an alcoholic, it makes you a responsible drinker. This is a no brainer for anyone who drinks."

  5. BACtrack S80 Professional Breathalyzer Alcohol Tester BAC

    #1 Rated Breathalyzer

    "We're sure the BACtrack S80 is the most accurate, reliable, and easiest-to-use personal breathalyzer that you can buy." - Wirecutter

  6. BACtrack Keychain Breathalyzer Personal Alcohol Tester BAC

    Easy to use & carry around

    "This tiny breathalyzer is perfect for on the go. I love having it around with friends after work so everyone can get home safely."

  7. BACtrack C8 Personal Breathalyzer Alcohol Tester BAC

    Your true BAC may surprise you

    "Whether you are a regular drinker or occasional, anyone who enjoys alcoholic beverages should own a BACtrack and use it regularly."

  8. BACtrack Trace Professional Breathalyzer

    Goes out when we do

    "Friends are impressed. Everybody stays safe. Highly recommended!"

  9. BACtrack Keychain Breathalyzer (Blue)

    I love this product

    "Perfect for testing my alcohol level before I drive home. It’s so small - it fits in my purse, I don’t even notice it!"

  10. BACtrack Mobile Smartphone Breathalyzer

    Very sleek, very accurate

    "The best tool I have ever bought. I'm shocked at how buzzed a legal limit of 0.08 feels! Worth every penny."

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From the manufacturer

keychain breathalyzer breathalyzer keychain bactrack keychain breathalyzer bactrack breathalyzer
bac track bac tracker backtrack backtracker keychain breathalyzer bac breathalyzer bac breathelizer
alcohol checker brethalyzers keychain mini breathalyzer pocket breathalyzer keychain breathalyzer
breathalyzer for alcohol keychain portable alcohol breathalyzer bac keychain breathalyzer bac track
BACtrack S80 Professional Breathalyzer BACtrack Trace Professional Breathalyzer BACtrack Mobile Smartphone Breathalyzer BACtrack C8 Personal Breathalyzer BACtrack C6 Keychain Breathalyzer bactrack keychain alcohol monitor bracelet portable bac tester portable breathalizer alcohol chain
BACtrack S80 BACtrack Trace BACtrack Mobile BACtrack C8 BACtrack C6 BACtrack Go
Customer Reviews
4.5 out of 5 stars
7,068
4.4 out of 5 stars
1,781
4.3 out of 5 stars
1,388
4.4 out of 5 stars
2,781
4.3 out of 5 stars
5,700
3.8 out of 5 stars
5,637
Price $128.55 $99.99 $84.99 $89.99 $69.99 $39.99
Ideal Use Personal & Professional Personal & Professional Personal & Professional Personal Personal Personal
Alcohol Sensor Type Platinum Fuel Cell Platinum Fuel Cell Platinum Fuel Cell Platinum Fuel Cell Platinum Fuel Cell Semiconductor
Professional-Grade Accuracy ✓ ✓ ✓ ✓ ✓
Wireless Connectivity to iOS & Android Devices ✓ - Required ✓ - Optional ✓ - Optional
ZeroLine Technology - Estimates Time to 0.00% BAC ✓ - App Only ✓ - App & Device ✓ - App Only
Advanced User Controls for Professional Testing Environments ✓
Battery Type 2 x AA batteries 2 x AAA batteries Micro-USB Rechargeable Lithium Ion 1 x AAA battery 1 x AAA battery 1 x AAA battery
Size (L x W x H) 2.00" x 0.75" x 4.75" 1.87" x 0.63" x 4.25" 1.75" x 0.63" x 2.75" 2.50" x 0.66" x 2.20" 2.21" x 0.66" x 1.88" 2.40" x 0.55" x 1.45"
Weight (including battery) 136g 85g 57g 57g 57g 57g

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.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 1.45 x 0.55 x 2.4 inches; 1.76 ounces
  • Item model number ‏ : ‎ BT-KC20
  • Department ‏ : ‎ Unisex
  • Batteries ‏ : ‎ 1 AAA batteries required. (included)
  • Date First Available ‏ : ‎ July 16, 2014
  • Manufacturer ‏ : ‎ BACtrack
  • ASIN ‏ : ‎ B00LVOU27U
  • Country of Origin ‏ : ‎ China
  • Customer Reviews:
    3.8 3.8 out of 5 stars 5,637 ratings

Product guides and documents

User Manual (PDF)

Important information

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Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

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Customer reviews

3.8 out of 5 stars
3.8 out of 5
5,637 global ratings

Customers say

Customers like the size and safety of the product. They say it's small enough to carry with you and convenient for keychain. They also say it comes in handy as a guideline and perfect for managing awareness. Customers are also satisfied with ease of use, and entertainment value. However, some customers have reported issues with quality and accuracy. They mention that the product is faulty and gives inconsistent readings. Customers also differ on performance, and value.

AI-generated from the text of customer reviews

84 customers mention67 positive17 negative

Customers find the breathalyzer easy to use and convenient. They say it's simple and accurate, and it takes less than a minute for results. Some customers also mention that it'll prevent DWI while driving.

"Very accurate & convenient. Seems a little cheap so I’m worried it won’t last but could be wrong" Read more

"Seems to work? Easy to use" Read more

"It's easy to use, but it can't be fully accurate...." Read more

"It’s a nice little device and pretty well made. It is easy to use if you follow the directions and wait the 15 minutes. The accuracy seems okay...." Read more

53 customers mention48 positive5 negative

Customers find the size of the product small enough to carry with them and convenient for keychains. They also say it's pocket friendly, discreet, and portable. However, some customers don't trust the readings at all.

"I don’t know if this really works or not but it’s cute, little, and fits on my key chain. I tried it after a few drinks and it showed 0" Read more

"...Pros:Responds quickly and gives reading in 5 sec of lessCompact (fits in the average male jean pocket) and can attach to a key ring/..." Read more

"This works greatAccuratePortable" Read more

"I bought one to just carry around with me. It works really well and it’s tiny so it’s easy to clip to any bags or like items...." Read more

38 customers mention34 positive4 negative

Customers like the safety of the product. They mention it's helpful to have, handy, and perfect for managing awareness. Some say it'll keep them safe while driving. Overall, most are satisfied with the product's safety.

"...I do agree that this item is worth having for safety reasons and to try out at home with the intentions of under4standing your bodies way it..." Read more

"Extremely handy... Gives me control over intake and timing of alcohol use so that I'm never hung over at work." Read more

"...A good conversation piece. I wouldn’t completely trust it but it gives you a good idea." Read more

"This breathalyzer is so much fun. It is great for staying safe and always making the right choice. it is easy to use and seems pretty accurate...." Read more

32 customers mention29 positive3 negative

Customers find the breathalyzer fun to have around the house, and use it as a party gag. They also say it's a great party favor and excellent drinking game piece.

"...It seems to work very accurate too. These would be good for night outs or big get togethers." Read more

"...It soon became an excellent drinking game piece. The high test BAC gets to buy the next round.. we’ve also done the lowest BAC takes a shot!..." Read more

"...It’s really fun to use with friends when you’re out at a bar getting drinks. A good conversation piece...." Read more

"...Great fun." Read more

377 customers mention118 positive259 negative

Customers are mixed about the performance of the breathalyzer. Some mention that it works well, while others say that it doesn't even work right anymore. Some say that the battery included didn't work, and the results are terrible.

"The results are completely inaccurate. The results are terrible and you can't count on them. I would never recommend this device to anybody...." Read more

"Bought on January 25th. March 3rd & it no longer works. The blue light comes on & it makes a short beep but doesn’t move past that...." Read more

"...Compact (fits in the average male jean pocket) and can attach to a key ring/lanyardCons:Not accurate and easy to "trick"...." Read more

"It misread and I tried to start my car and now reported failure on my interlock ): I know I'm to blame but I wish it was more accurate" Read more

141 customers mention45 positive96 negative

Customers are mixed about the value of the breathalyzer. Some mention it's highly accurate and a very good value, while others say it'll only last a month and is a waste of money.

"Very accurate & convenient. Seems a little cheap so I’m worried it won’t last but could be wrong" Read more

"...Not worth it for this model." Read more

"...The lesson is worth the cost, and it could save a life." Read more

"Let’s be real these breathalyzers are somewhat cheap-ish. It’s faulty at times and others, it seems to be correct...." Read more

299 customers mention84 positive215 negative

Customers are dissatisfied with the accuracy of the product. They mention that it gives inconsistent readings, and sometimes gives unreliable data. Some say that the maximum end of the reading is incorrect, and that it misreads.

"The results are completely inaccurate. The results are terrible and you can't count on them. I would never recommend this device to anybody...." Read more

"Sometimes it gives obviously erroneous readings so it doesn't have my full confidence but if you blow it again it seems to work...." Read more

"When it works it's great and accurate from what I can assess but often times when it starts it gives an error code after using it" Read more

"...Cons:Not accurate and easy to "trick"...." Read more

242 customers mention66 positive176 negative

Customers are dissatisfied with the quality of the health personal care product. They mention that it's faulty, not reliable, and terrible. Some say that the product has a crack in the screen and registers false positives.

"...It is absolute trash. If I could give it zero Stars I would give it zero." Read more

"...from what I can assess but often times when it starts it gives an error code after using it" Read more

"...With that being said I wouldn't bet my CDL on it, but I think it's a great guage...." Read more

"This is the second one that I have purchased, this one broke within 2 weeks of having this...." Read more

Im legit real an so is this. Saved my A##
5 Stars
Im legit real an so is this. Saved my A##
No lie im whats there to dislike? Yall!! Yall!! For being so small its not cheap made at all and its still so constantly accurate! And i have a interlock breathalyzer in my car from a dui unfortunately but this lil guy is my heart lol. It helps an saves me so i can make sure im good even after a night of drinking it still reads accurate the morning after! Who woulda known that interlocks in the car still detect the day later.. Anyway this lil thing helps me so i dont keep accidentally failing or even having a small 0.01 even on my breath an get in trouble for it. I can garantee an promise you this lil thing is 110% accurate even the morning after an its not all cheap nor a waste of anything. I can keep going but ill keep it short trust with god as my witness if your needing one even legally life and future depemding on it this is the product to get even tho ots a lil white key chain breathalyzer its worth every penny def best 40$ spent A LIFE/FUTURE SAVER!!
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Top reviews from the United States

paula
5.0 out of 5 stars Doesn't always work.
Reviewed in the United States on June 30, 2023
Package Quantity: 2Color: WhiteVerified Purchase
I have use this within 15 minutes of drinking alcohol and have blown 0.00. I redo it and it comes out at 0.04. Sometimes it comes out zero twice before I get a true reading. I would not trust this device to work with a kid or somebody else you really need accuracy to monitor. I do love this brand and their larger unit is a veritable or course that is always accurate. Sadly, both of the small units are showing the same problems after three months.
8 people found this helpful
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AmandaS
5.0 out of 5 stars Cute and small
Reviewed in the United States on April 1, 2024
Package Quantity: 1Color: WhiteVerified Purchase
I don’t know if this really works or not but it’s cute, little, and fits on my key chain. I tried it after a few drinks and it showed 0
One person found this helpful
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Ryan P.
1.0 out of 5 stars Absolute Trash
Reviewed in the United States on April 4, 2024
Package Quantity: 1Color: WhiteVerified Purchase
The results are completely inaccurate. The results are terrible and you can't count on them. I would never recommend this device to anybody. They tell you to send it back in to a certified professional. Well how come your certified professionals didn't get it right the first time. Because if that is the case then people's lives depend on this item. I literally sat here drinking water and my blood alcohol went up by this machine. It is absolute trash. If I could give it zero Stars I would give it zero.
2 people found this helpful
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Katie Marie Blair Fortman
4.0 out of 5 stars Pretty good
Reviewed in the United States on March 26, 2024
Package Quantity: 1Color: BlackVerified Purchase
Sometimes it gives obviously erroneous readings so it doesn't have my full confidence but if you blow it again it seems to work. Definitely read the instructions to use properly
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Paige
3.0 out of 5 stars Easy to use but not very accurate
Reviewed in the United States on September 20, 2022
Package Quantity: 1Color: WhiteVerified Purchase
Got this or my family member's 21st birthday and they thought it was such a neat present. They take the reading with a grain of salt though and wait to fully sober up before they drive because it's easy to trick the reading into a higher or lower score. We compared it several times to our professional breathalyzer (BACtrack S80) and the scores were almost different more than 50% of the time.

Pros:
Responds quickly and gives reading in 5 sec of less
Compact (fits in the average male jean pocket) and can attach to a key ring/lanyard

Cons:
Not accurate and easy to "trick". You can wait the full 20 minutes and notice you'll score differently if you've had water or gargled other non alcoholic liquids right before hand.
Would show 0.02 even even though the person blowing into it didn't have any alcohol prior to testing
18 people found this helpful
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Matthew A.
5.0 out of 5 stars Works great
Reviewed in the United States on March 23, 2024
Package Quantity: 1Color: WhiteVerified Purchase
This works great
Accurate
Portable
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Clare Boggs
5.0 out of 5 stars Bought to use on my spouse
Reviewed in the United States on March 25, 2024
Package Quantity: 1Color: WhiteVerified Purchase
After my husband went thru detox, I wanted something that was accurate. This fit the bill for a portable one.
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Jake
2.0 out of 5 stars Doesn't always work
Reviewed in the United States on February 17, 2024
Package Quantity: 1Color: BlackVerified Purchase
When it works it's great and accurate from what I can assess but often times when it starts it gives an error code after using it
One person found this helpful
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Top reviews from other countries

Translate all reviews to English
peter
5.0 out of 5 stars Gives a reading
Reviewed in Canada on March 29, 2024
Package Quantity: 1Color: BlackVerified Purchase
It gives a reading, I haven’t compared it to any other devices so I don’t have much to go on. Keep in mind that if you blow into it after drinking you will indeed get a BOC but if you keep blowing into it or pass it around the following readings will be incorrect.
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Doesn't work
1.0 out of 5 stars Doesn't
Reviewed in the Netherlands on April 13, 2024
Package Quantity: 1Color: WhiteVerified Purchase
Is not consistent
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martina
5.0 out of 5 stars Molto utile
Reviewed in Italy on February 26, 2024
Package Quantity: 1Color: BlackVerified Purchase
Utile per monitorare il livello alcolemico se si esce e si beve un bicchiere in più, molto preciso.
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franck letourneur
3.0 out of 5 stars Comprendre la lecture des résultats
Reviewed in France on February 14, 2024
Package Quantity: 1Color: WhiteVerified Purchase
Vu que la notice est en Anglais et que ce n'est pas vraiment clair.
J'en ai déduit moi même comment interpréter les résultats .
0.02-0.03% pour 1 verre soit environ 0.25 mg/litre de sang
0.04-0.06% pour environ 2 verres soit plus ou moins 0.5 mg/litre de sang
Au delà de ce chiffre, vous êtes positif au contrôle d'alcoolémie et risquez 6 points et une suspension de permis.
0.10 égal environ 1 gramme et ainsi de suite
0.40 peut engendrer la mort
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Jose rovira
5.0 out of 5 stars ÓPTIMO
Reviewed in Spain on December 3, 2023
Package Quantity: 1Color: BlackVerified Purchase
Pequeño y muy fiable
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