BACtrack Keychain Breathalyzer Portable Keyring Breath Alcohol Tester, Black
- Advanced MicroCheck Sensor Technology - BACtrack's proprietary sensor technology delivers reliable, accurate BAC results you can trust.
- Ultra-Compact Design - Fits inside a purse or pocket and can be easily used as a keychain
- Effective Breath Capture - The innovative fold-out mouthpiece ensures only your breath goes into the breathalyzer, while ambient air, fumes, and other airborne gases are kept out.
- One Touch Operation - Simply power on your BACtrack Keychain and BAC results are displayed on a bright, easy-to-read LCD display in seconds
- Manufactured by BACtrack - The #1 most-trusted brand of breathalyzers, with over 14 years of experience providing the most accurate, convenient and affordable breath alcohol testing devices on the market
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From the Manufacturer
Available in: Purple, Green, Blue & Black
The Leader in Breathalyzers
BACtrack, one of the most-trusted brand of breathalyzers, with over 14 years of experience in the industry, provides the most accurate, convenient and affordable breath alcohol testing devices on the market.
With its personal, professional and smartphone breathalyzers being sold in more than 20,000 retail stores in North America and in over 25 countries worldwide, BACtrack truly is the leader in breathalyzers.
BACtrack Keychain Breathalyzer
Perfect for BAC testing on the go
Quickly and easily estimate your blood alcohol content with the small and affordable BACtrack Keychain Breathalyzer. The folding mouthpiece pulls out during testing and slides back down during storage – blow for accurate BAC results in just 5-seconds. Best of all, you can’t forget your Keychain Breathalyzer as it travels with you wherever you carry your keys.
- Ultra-portable, take anywhere design
- Easy to read, two-digit LED display
- Accurate, reliable results from 0.00-0.40% BAC
- Operates with one AAA battery, included
- FDA 510(k) cleared for personal use
- Full one-year warranty
BACtrack Keychain Breathalyzer Features
The Smallest Breathalyzer Ever Created
Measuring just 1.5 inch x 2.5 inch x 0.5 inch and weighing a mere 2 ounce, the BACtrack Keychain Breathalyzer is the smallest, lightest breathalyzer in the world. Its ultra-compact size makes it easy to carry in a purse or pocket and can even be used as a keychain.
Reliable, Accurate BAC Results
Powered by Advanced MicroCheck Sensor technology, the BACtrack Keychain Breathalyzer delivers reliable, accurate BAC results you can trust. You can expect up to 75 tests per single AAA battery.
Share With Friends and Family
With its innovative folding mouthpiece design and three included reusable mouthpieces, the BACtrack Keychain Breathalyzer is perfect for testing yourself as well as your friends and family. Gain peace of mind and keep your loved ones safe with BACtrack.
BACtrack best rated Breathalyzer Brand
In an industry-wide comparison of breathalyzers by Car & Driver Magazine, BACtrack was rated one of the best overall breathalyzer brand, being given high marks for accuracy, portability and price.
'Best of What's New in Health' Award
Popular Science awarded BACtrack its 'Best of What's New in Health' Award, praising BACtrack's breakthrough technology that allows people to know when to stop drinking and to stay off the roads.
Reviews From Around the Web
BACtrack breathalyzers have received glowing praise from several notable industry leaders, including:
- Yahoo Tech
- Business Insider
What the Press is Saying
'Incredibly precise and easy to use.' - Newsday
'The best way to monitor your blood alcohol level before the authorities do it for you.' - Examiner
'Helps people understand alcohol's effect on their bodies.' - Fast Company
'A handy tool to have around.' - NPR
'One of the smallest breathalyzers available.' - Popular Science
|BACtrack Mobile Smartphone Breathalyzer||BACtrack Vio Smartphone Keychain Breathalyzer||BACtrack S80 Professional Breathalyzer||BACtrack Trace Professional Breathalyzer||BACtrack S35 Personal Breathalyzer||BACtrack Keychain Breathalyzer|
|Ideal Use||Personal & Professional||Personal||Personal & Professional||PersonalPersonal & Professional||Personal||Personal|
|Sensor Type||Fuel Cell||Fuel Cell||Fuel Cell||Fuel Cell||Semiconductor||Semiconductor|
|Accuracy Rating||10 - Most Accurate||7 - Very Accurate||10 - Most Accurate||9 - Extremely Accurate||7 - Very Accurate||6 - Accurate|
|ZeroLine - Estimates time to 0.000% BAC||✓||✓|
|Battery Type||Mini-USB Rechargeable Lithium Ion||1 x AAA battery||2 x AA batteries||2 x AAA batteries||2 x AAA batteries||1 x AAA battery|
|One Year Warranty||✓||✓||✓||✓||✓||✓|
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Top Customer Reviews
When I first got this little doodad, I put the battery in and went hog playing around with it, drinking with some buddies.
The next day, it started acting really funny. It would turn on and start counting down, and then shut off almost immediately. If I left it 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. I thought the battery was dead. I checked the battery with a volt meter, and the battery didn't look dead at all. I thought I got a lemon... and then I got a new battery. Now it's fine.
To those who have seen the "it was working great the first night, and then it quit on me" reviews, this is what's going on:
This device seems power hungry, and I have a feeling that the AAA battery can't immediately produce the power it needs, so it needs to harvest the energy slowly while not in use so that it can do a test. I didn't like that this behavior isn't explicitly explained in the manual. The manual does say to wait a few minutes between tests. If you don't follow this, it will actually kill the battery. If you played with it non-stop all night and it won't work anymore on a seemingly good battery, replace the battery and use it properly. It will function perfectly. This is something that should be clearly addressed in the manual, and I think would eliminate the negative reviews that I have seen.
Realize, this device was designed for a responsible drinker who wants to stay safe. That person will use it perhaps 4 times at most throughout an evening.Read more ›
Will update this after I compare it to the BACtrack S80 fuel cell model that I recently ordered arrives.
Update: Drank two beers 24 oz. total. Here are the results as my body eliminated the alcohol. Three digit numbers on the left are the pricy fuel cell model results.
6:56pm .029 vs. .06 BAC
7:12pm .022 vs. .04
7:21pm .020 vs. .03
7:38pm .016 vs. .03
8:36pm .000 vs. .00
The two digit numbers on the right are this inexpensive keychain model. The three digit numbers on the left are the BACtrack S80 $136. model. My stomach was completely empty when I did the above comparison. My old alcohol sensor unit was more accurate than this one. This is little more than a keychain trinket/party toy as far as I am concerned.
Blew into a fuel cell model years back when a cop thought I was drunk. He was puzzled for I was well below 0.08 but had alocohol on my breath... Am glad I have an accurate breathlizer now. Cheap insurance considering the potential ramifications of being over 0.08% BAC. Figure on the high probability of a blood test for any and all drugs if you look/smell/act impaired. The courts have upheld the use of blood tests at the discretion of the cops. In the event of a fatal accident, your blood will be tested.
Went partying yesterday afternoon. Got two back to back readings with my S80 model of 0.Read more ›
When used correctly, it registers consistently exactly 0.01 below my other unit. I don't know which is "correct", but with mathematical computations based on my body weight vs. number of fluid ounces of alchohol, both register either exactly or very close to what they are supposed to. When I say "correctly", I mean not within 15 minutes of having a drink, or no repeated blows too close together (as the directions clearly state and clearly what multiple reviewers chose to ignore.)
I had one isolated incident where it read 0.00 a couple of consecutive times, but setting it down for 10 minutes and trying again seemed to correct it's minor brain lapse.
The real negative here is that the battery is seemingly only good for a few days (with our use, maybe 10-12 blows.) I would love for other users (or the manufacturer) to chime in and let me know if this is a defective unit, or truly a design deficiency, because this would be a 5-star product without this issue. Regrettably with it, it's only 3.
After publishing this review, I mailed bactrack customer service. They responded within about 4 business hours of my request with this very nice reply - upping my rating to 4 stars, and will change to 5 if the new one gets the proper battery life:
Thank you for contacting us with your Customer Support issue. I'm sorry to hear that you are having a little trouble with your breathalyzer.
According to manufacturer specifications and general customer experience, the KC10 typically has a battery life of about 50-75 uses.Read more ›
Most Recent Customer Reviews
Seems very accurate. Provides great peace of mind for the drive home. Make sure to wait 15 minutes after your last drink for the best results.Published 2 days ago by Chris Miller
does not work. picks up 0 regardless of how much anyone has had to drinkPublished 2 days ago by Claire
Very cool, inexpensive gadget to throw on your keys. Works perfectly (can confirm through much rigorous testing) and is a great tool to have when you need to drive but not quite... Read morePublished 7 days ago by KELLEN S JONES
We like this breathalyzer pretty well. I got it for my husband in an attempt to get him to connect the amount of alcohol he consumes to his BAC regardless of how he feels. Read morePublished 8 days ago by lauren m
Bought this as gift. A group tried it after drinking and the men did not register any alcohol level but the women did! Read morePublished 10 days ago by Ishop
I purchased a much more expensive BACtrack a couple years ago. Very happy with it but wanted a second one for my purse. You get what you pay for. Read morePublished 11 days ago by Amazon Customer