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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 5,576 ratings

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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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From the brand


From the manufacturer

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bac track bac tracker backtrack backtracker keychain breathalyzer bac breathalyzer bac breathelizer
alcohol checker brethalyzers keychain mini breathalyzer pocket breathalyzer keychain breathalyzer
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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
7,020
4.4 out of 5 stars
1,776
4.3 out of 5 stars
1,385
4.4 out of 5 stars
2,737
4.3 out of 5 stars
5,678
3.8 out of 5 stars
5,576
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 5,576 ratings

Product guides and documents

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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
5,576 global ratings

Customers say

Customers like the entertainment value and size of the breathalyzer. For example, they mention it's fun to have around the house, and a great party gag. That said, some complain about the accuracy and quality. Opinions are mixed on performance and value.

AI-generated from the text of customer reviews

83 customers mention66 positive17 negative

Customers find the breathalyzer easy to use. They say it's simple, accurate, and convenient. Some say it can be used to 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

"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

"Very easy to use and seems accurate" Read more

52 customers mention47 positive5 negative

Customers find the size of the product convenient and portable. They say it's small enough to carry with you and just right when you need to check yourself. Some say the design and size of this product are great, while others don't trust the readings at all. Overall, most are satisfied with the size and portability of this blood pressure monitor.

"...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

"Seems pretty accurate. It's convenient to have!" Read more

34 customers mention34 positive0 negative

Customers are satisfied with the safety of the product. They mention it's handy, accurate, and a good basis for real life. Some say it'll keep them safe while driving.

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

"...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

"...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 it comes with several breath tubes so friends can use it. They say it's a fun little gadget to monkey with, and great for parties and messing around. Customers also say it soon became an excellent drinking game piece, and is good for night outs or big get togethers.

"...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

366 customers mention113 positive253 negative

Customers are mixed about the performance of the breathalyzer. Some mention that it works well, while others say that it doesn't work right anymore. Some say that the battery included didn't worked, and the device has issues turning on.

"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

"did not work like I suspected" Read more

"Works great" Read more

"It doesn't appear to work all the time and sometimes gives unreliable data...." Read more

144 customers mention45 positive99 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 save a life. The lesson is worth the cost, and it'd be a waste of money. However, some say that the product is not worth it for this model, is pretty cheap, and only lasts a month.

"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

"...Dang close for the price. I have Profesional experience with breathalyzers and this machine is great." Read more

"...Shows 0.00 consistently, which isn’t correct. Not worth purchase" Read more

307 customers mention84 positive223 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 the device misreads. Overall, customers are not happy with the product's accuracy.

"...Received it the next day of ordering. This product is extremely inaccurate. Don’t waste your money on this...." Read more

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

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

237 customers mention69 positive168 negative

Customers are dissatisfied with the quality of the product. They mention that it is faulty, breaks within 2 weeks, and does not seem the same quality as other models they have owned for years. Some say that the item arrived dead and gives an error message. Overall, customers are disappointed with the performance and durability of this product.

"...This product is absolute junk!!" 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

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