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BACtrack Keychain Breathalyzer (Black) | Ultra-Portable Pocket Keyring Alcohol Tester for Personal Use
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 keychain breathalyzer and begin testing in seconds. It's that easy!
- TAKE IT WITH YOU ANYWHERE - The ultra-compact BACtrack 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.
Additional Details
Frequently bought together
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From the brand
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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.
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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."
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#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
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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."
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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."
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Goes out when we do
"Friends are impressed. Everybody stays safe. Highly recommended!"
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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!"
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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."
From the manufacturer
BACtrack S80 | BACtrack Trace | BACtrack Mobile | BACtrack C8 | BACtrack C6 | BACtrack Keychain | |
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Customer Reviews |
4.5 out of 5 stars
7,020
|
4.4 out of 5 stars
1,776
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4.3 out of 5 stars
1,385
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4.4 out of 5 stars
2,737
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4.3 out of 5 stars
5,677
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3.9 out of 5 stars
4,829
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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" | 1.45" x 0.55" x 2.40" |
Weight (including battery) | 136g | 85g | 57g | 57g | 57g | 57g |
Product Description
Backtrack breathalyzer keychain
Product details
- Is Discontinued By Manufacturer : No
- Product Dimensions : 6 x 1.25 x 8.25 inches; 3.2 ounces
- Item model number : BT-KC10
- Department : unisex-adult
- Batteries : 1 AAA batteries required. (included)
- Date First Available : November 7, 2011
- Manufacturer : True Fabrication
- ASIN : B006536ZXC
- Country of Origin : China
- Best Sellers Rank: #31,774 in Health & Household (See Top 100 in Health & Household)
- #10 in Personal Breathalyzers
- #3,094 in Sales & Deals
- Customer Reviews:
Videos
Videos for this product
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BACtrack Ultra-Portable Keychain Breathalyzer
KHN Solutions Inc.
Videos for this product
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Customer Review: Never worked. Pure junk with no return option
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Customer Review: Doesn’t allow returns and doesn’t work!
Cleo
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Breathalyzer for you key chain to bring anywhere
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Important information
Legal Disclaimer
Estimates & results may vary. Product must be calibrated periodically as recommended in the instructions.
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
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the ease of use, portability, and fun of the product. They mention that the instructions are pretty specific, and it's ready for immediate use. They also like the portability and usefulness. However, some customers dislike the readability. Opinions are mixed on performance, quality, and accuracy.
AI-generated from the text of customer reviews
Customers find the product simple to use, with specific instructions. They also say it's convenient and ready for immediate use.
"...Ready for immediate use (no warm-up time) once I turn it on, it delivers results within 13 seconds...." Read more
"...It comes with a Duracell AAA battery as pictured. The instruction manual is clearly written and the table describing effects of increasing levels of..." Read more
"...It arrived quickly, and is small and simple to use...." Read more
"Surprisingly accurate and it is easy to use" Read more
Customers find the breathalyzer to be fun when out with their drinking buddies. They say it's useful and worth the good times. Customers also mention that it'll make a great party game.
"...It matched the table perfectly. And it's very consistent. If I repeat a test, it is always within 0.01 of the last...." Read more
"It has a low battery life and sometimes doesnt work, but it can be useful and fun" Read more
"...It was pretty hilarious...." Read more
"...This one makes for great fun when out with your drinking buddies." Read more
Customers find the breathalyzer easy to use and small enough to carry. They say it's not too small or too big, and can be tossed into any size of purse. Customers also say it fits the bill perfectly as a nifty trinket.
"...I think everyone needs one. It can be tossed into any size of purse, attached to any key chain and even tossed into any pocket...." Read more
"...It arrived quickly, and is small and simple to use...." Read more
"...Pros:Inexpensive (especially compared to DWI costs)Small, fits in purseHas worked well every it has been used..." Read more
"...It’s pretty small (almost 2.5in length and 1.5in across) also which can be good or bad depending on what you’re..." Read more
Customers find the product very handy, wonderful, and useful for going out. They say it's a great little gadget and works well. Customers also mention that it'll be great for personal use so you know when you can and can't be making. They also say it’s an educational gadget that they would recommend.
"...Wonderful device to keep at hand when out with your friends or any occasion. Better to have at hand then behind bars. 🍸..." Read more
"...the knowledge to understand what factors are at play, it's a damned educational gadget that I would recommend to anyone interested in some..." Read more
"...I use this product because it's convenient. This thing is easily stored in the pocket of my jeans, along with my car keys...." Read more
"...pace of drinking is unsafe I highly recommend it as a deterrent, learning tool, and peace of mind." Read more
Customers are mixed about the performance of the product. Some mention that it works relatively well, giving consistent results. However, others say that it didn't work initially, became non-functional for a relatively long period, and does not deliver.
"...I stopped. Using it after a year and tried again and now it won’t work. I opens it and cleaned it out nothing...." Read more
"Works great in a pinch. You know when you need to call for taxi instead of being behind the wheel...." Read more
"...alone for several hours, I could do a test, but then it was unable to do another test. Sometimes I could do a test and it gave me the 'Lo' message...." Read more
"...In practice, it is functional but you have to not eat/drink for 1 hour, take at least 2 measurements 10-15 minutes apart and the average of this is..." Read more
Customers are mixed about the quality of the breathalyzer. Some mention that it's well worth the price, reliable, and well-made for the price. However, others say that it is not the best product for your money, it'll fail on you after a few beers, and the chain that's attached on broke off.
"Bought this for my son. He had it for two weeks and the keychain broke off of the base in that short time...." Read more
"The BACtrack is a convenient breathalyzer and it's consistently delivered reliable readings compared to a borrowed, higher priced breathalyzer I..." Read more
"It's not the best product for your money, from what I've read of other breathalyzers...." Read more
"...Its nice for the money, but wouldnt recommend. The accuracy was never good without averaging, but the dealbreaker is really the low product life...." Read more
Customers are mixed about the accuracy of the breathalyzer. Some mention it's extremely accurate and can detect the presence of alcohol, while others say that it only ever gives accurate readings if you wait at least 10 minutes between uses.
"The BACtrack is a convenient breathalyzer and it's consistently delivered reliable readings compared to a borrowed, higher priced breathalyzer I..." Read more
"So I liked the idea of a keychain breathalyzer, but its not as convenient or accurate as advertised. I do not drive past 0.06 and this is not..." Read more
"...The BACtrack Keychain was definitely a cost-effective, reasonably-accurate solution for me at the time...." Read more
"...This is probably not the most accurate measurement and has on several occasions told me I was way higher or lower than I possibly could've been...." Read more
Customers are dissatisfied with the readability of the product. They mention that it struggles to give an accurate reading, and gives a 0.00 reading multiple times. Some customers also say that the product doesn't work properly and doesn' t give accurate results.
"...It is not a completely accutate reading and you should not expect that of a product in this category and price range...." Read more
"...to blow into it right after taking a sip of alcohol or the BAC will read really high. You have to take a few minutes before testing it...." Read more
"...instructions to wait 20 min after last drink or the readings displayed will be very high...." Read more
"...After a few months of use the reading become wildly inaccurate...." Read more
Reviews with images
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Top reviews
Top reviews from the United States
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Pro Tip: The sanitary tips included are dishwater safe.
I stopped. Using it after a year and tried again and now it won’t work. I opens it and cleaned it out nothing.
So either buy the 3 year warranty or have. It for a little lol
I do not drive past 0.06 and this is not at all suitable for someone who wants to pace themselves and would be dangerous for those who drive just under the legal limit.
The variance between measurements is easily +/- 0.02. You can read 0.08 15 minutes after one beer and it will fall to 0.00 after 30 minutes.
Use of mouthwash takes 30 minutes to go from 0.11 to 0. As you can see, the suggested 15 minute interval in manual is insufficient for a completely accurate reading.
I am not sure if my expectations were too high for the product, but it is better than nothing, but there are superior products on the market. In practice, it is functional but you have to not eat/drink for 1 hour, take at least 2 measurements 10-15 minutes apart and the average of this is somewhat reliable. A typical reading series without food or drink waiting 5 minutes may look like; 0.08 ,0.06,0.10, 0.08,0.08,0.06,0.08,0.06 so I would infer this would be 0.075 but the 95% CI would be 0.06-0.092. Its fun having a cheap product that correlates with BAX, but if your intention is to keep yourself out of trouble while driving close to the limit you should probably invest a bit more unless you enjoy doing drunk statistics. If you have this good of a memory on your nights out, you could probably just get the same estimate from writing down your servings and using an online calculator with body weight. Unfortunately people who drink more than one type of beverage will usually not know the alcohol content or remember how many, so this fills that gap, but I would advise spending a few more bucks for the better one.
I've also seen false positives. After testing, I accidentally pressed the button without blowing on it and received a rating of 0.02, suggesting the device does not check if you are using it appropriately and assumes you are.
Update:
Died about a year later so I decided to go with another brand. Its nice for the money, but wouldnt recommend. The accuracy was never good without averaging, but the dealbreaker is really the low product life. I had assumed that semiconductor would be more durable but less accurate, but its really not great on durability aspect either.
Reviewed in the United States on November 27, 2021
I do not drive past 0.06 and this is not at all suitable for someone who wants to pace themselves and would be dangerous for those who drive just under the legal limit.
The variance between measurements is easily +/- 0.02. You can read 0.08 15 minutes after one beer and it will fall to 0.00 after 30 minutes.
Use of mouthwash takes 30 minutes to go from 0.11 to 0. As you can see, the suggested 15 minute interval in manual is insufficient for a completely accurate reading.
I am not sure if my expectations were too high for the product, but it is better than nothing, but there are superior products on the market. In practice, it is functional but you have to not eat/drink for 1 hour, take at least 2 measurements 10-15 minutes apart and the average of this is somewhat reliable. A typical reading series without food or drink waiting 5 minutes may look like; 0.08 ,0.06,0.10, 0.08,0.08,0.06,0.08,0.06 so I would infer this would be 0.075 but the 95% CI would be 0.06-0.092. Its fun having a cheap product that correlates with BAX, but if your intention is to keep yourself out of trouble while driving close to the limit you should probably invest a bit more unless you enjoy doing drunk statistics. If you have this good of a memory on your nights out, you could probably just get the same estimate from writing down your servings and using an online calculator with body weight. Unfortunately people who drink more than one type of beverage will usually not know the alcohol content or remember how many, so this fills that gap, but I would advise spending a few more bucks for the better one.
I've also seen false positives. After testing, I accidentally pressed the button without blowing on it and received a rating of 0.02, suggesting the device does not check if you are using it appropriately and assumes you are.
Update:
Died about a year later so I decided to go with another brand. Its nice for the money, but wouldnt recommend. The accuracy was never good without averaging, but the dealbreaker is really the low product life. I had assumed that semiconductor would be more durable but less accurate, but its really not great on durability aspect either.
I first saw this device in a comparison test of breathalyzers in the April 2014 issue of 'Car and Driver' magazine. It tested as well as - in some cases better than - a unit costing 5x more. The device feels well-made for the price - not especially rugged but not cheap either. It operated as-described. It comes with a Duracell AAA battery as pictured. The instruction manual is clearly written and the table describing effects of increasing levels of alcohol was informative.
I have no way of verifying the unit's accuracy but it seems to work properly, displaying roughly proportionate increases in BAC when consuming alcohol. After 15 hours with no alcohol it registered a BAC of 0.00. After one shot and a fifteen minute wait it indicated 0.03. After an additional 3/4 bottle of beer and fifteen minute wait I tested at 0.04.
In the FAQs, when queried where the unit was made, BACTRack customer service responded, "We do all our design, testing, calibration and quality assurance here in California" but for whatever reason omitted that it is also "Assembled in China" as printed on the packaging.
Overall I recommend this device: it feel adequately constructed for the price, seems to work as advertised. I can see it being fun at parties and could save your license!
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