--- product_id: 58576914 title: "C6 Keychain Breathalyzer | Professional-Grade Accuracy | Optional Wireless Smartphone Connectivity | Compatible w/ Apple iPhone, Google & Samsung Android Devices | Apple HealthKit Integration" price: "€ 133.26" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.hr/products/58576914-c6-keychain-breathalyzer-professional-grade-accuracy-optional-wireless-smartphone-connectivity store_origin: HR region: Croatia --- # Wireless Smartphone Connectivity Compact Keychain Design Pro-grade Fuel Cell Sensor C6 Keychain Breathalyzer | Professional-Grade Accuracy | Optional Wireless Smartphone Connectivity | Compatible w/ Apple iPhone, Google & Samsung Android Devices | Apple HealthKit Integration **Price:** € 133.26 **Availability:** ✅ In Stock ## Summary > 🔑 Stay sharp, stay safe—your pocket-sized BAC guardian. ## Quick Answers - **What is this?** C6 Keychain Breathalyzer | Professional-Grade Accuracy | Optional Wireless Smartphone Connectivity | Compatible w/ Apple iPhone, Google & Samsung Android Devices | Apple HealthKit Integration - **How much does it cost?** € 133.26 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/58576914-c6-keychain-breathalyzer-professional-grade-accuracy-optional-wireless-smartphone-connectivity) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Always On Hand:** Ultra-compact keychain size fits seamlessly in your pocket or purse—never leave home without your personal breathalyzer. - • **Smart BAC Insights:** ZeroLine technology estimates when your BAC returns to 0.00%, so you always know when it’s safe to drive or head home. - • **Dual Mode Flexibility:** Use standalone for quick checks or app mode for enhanced analytics and community BAC trends—switch modes effortlessly. - • **Seamless App Integration:** Connect wirelessly to iPhone, Google, and Samsung devices with Apple HealthKit support for real-time tracking and social sharing. - • **Hospital-Trusted Accuracy:** Powered by BACtrack’s patented BluFire Fuel Cell Sensor, delivering professional-grade BAC readings you can rely on. ## Overview The BACtrack C6 Keychain Breathalyzer combines professional-grade fuel cell sensor technology with a sleek, portable design. Compatible with major smartphones and Apple HealthKit, it offers wireless connectivity and innovative ZeroLine BAC tracking. Perfect for millennials who value accuracy, convenience, and social connectivity in managing their alcohol intake responsibly. ## Description 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. 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. #1 Rated Breathalyzer Brand Visit the Store #1 Rated Breathalyzer Brand Visit the Store 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." 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." #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 #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 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." 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." 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." 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." Goes out when we do "Friends are impressed. Everybody stays safe. Highly recommended!" Goes out when we do "Friends are impressed. Everybody stays safe. Highly recommended!" 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!" 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!" 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." 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." Review: Simple, Reliable, and Worth It - I wasn’t expecting to like this as much as I do, but the BACtrack C6 has honestly been really solid. I mainly wanted something small and easy to carry, and the keychain size is perfect — I just keep it on me and don’t have to think about it. What matters most is accuracy, and from what I’ve seen, it’s been consistent. I’ve compared it a couple of times and the readings were pretty much in line, which gives me confidence it’s doing its job. It also warms up quick and gives results fast, so you’re not standing around waiting. The app connection is actually pretty cool too. I don’t use it every time, but it’s helpful when you want a better idea of where you’re at or how long it might take to get back to zero. Overall, it just feels reliable and easy to use. Nothing flashy, just works the way you want it to. Definitely a good buy if you want something you can trust and actually carry with you. Review: Genius - Works great, I love having it around as a fun party gimmick but also use it just to sort of “train” myself to know where I’m at with how much I’ve had to drink. Educational and fun in my opinion. Obviously not as reliable as a police/high grade BAC device, but is accurate and fun. ## Features - ESTIMATE YOUR ALCOHOL LEVEL WITH PRO-GRADE ACCURACY - Powered by BACtrack's patented BluFire Fuel Cell Sensor, the C6 utilizes the same professional-grade technology trusted by hospitals, clinics, and even law enforcement. - KNOW WHEN YOUR BAC WILL RETURN TO 0.00% - BACtrack's innovative ZeroLine technology estimates the time until your blood alcohol content is 0.00%, allowing you to quickly and easily know where you stand. - SMALL & PORTABLE DESIGN - This mini handheld breathalyzer measures fits easily in a purse, pocket, or on your keychain, so you can always have it when you need it. - OPTIONAL WIRELESS CONNECTIVITY - Use the BACtrack C6 with or without your smartphone. "Standalone Mode" delivers your BAC results directly to your C6. "App Mode" wirelessly delivers your BAC results to the BACtrack App on your smartphone. Easily switch between modes. - ONE-YEAR WARRANTY - If your BACtrack ceases to function properly during the first year of operation, we will repair or replace the defective device. ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #6,211 in Health & Household ( See Top 100 in Health & Household ) #1 in Personal Breathalyzers | | Customer Reviews | 4.3 out of 5 stars 6,888 Reviews | ## Product Details - **Battery Description:** CR2032 (Non-replaceable) - **Brand:** BACtrack - **Color:** White - **Compatible Devices:** Smartphones - **Global Trade Identification Number:** 00857186005462 - **Item Weight:** 0.13 Pounds - **Manufacturer:** BACtrack - **Material:** Plastic - **Sensor Type:** Fuel Cell - **UPC:** 857186005462 ## Images ![C6 Keychain Breathalyzer | Professional-Grade Accuracy | Optional Wireless Smartphone Connectivity | Compatible w/ Apple iPhone, Google & Samsung Android Devices | Apple HealthKit Integration - Image 1](https://m.media-amazon.com/images/I/61d31HStaGL.jpg) ![C6 Keychain Breathalyzer | Professional-Grade Accuracy | Optional Wireless Smartphone Connectivity | Compatible w/ Apple iPhone, Google & Samsung Android Devices | Apple HealthKit Integration - Image 2](https://m.media-amazon.com/images/I/71eqNfxKD+L.jpg) ![C6 Keychain Breathalyzer | Professional-Grade Accuracy | Optional Wireless Smartphone Connectivity | Compatible w/ Apple iPhone, Google & Samsung Android Devices | Apple HealthKit Integration - Image 3](https://m.media-amazon.com/images/I/81JU4B1YGoL.jpg) ![C6 Keychain Breathalyzer | Professional-Grade Accuracy | Optional Wireless Smartphone Connectivity | Compatible w/ Apple iPhone, Google & Samsung Android Devices | Apple HealthKit Integration - Image 4](https://m.media-amazon.com/images/I/71FED4OWscL.jpg) ![C6 Keychain Breathalyzer | Professional-Grade Accuracy | Optional Wireless Smartphone Connectivity | Compatible w/ Apple iPhone, Google & Samsung Android Devices | Apple HealthKit Integration - Image 5](https://m.media-amazon.com/images/I/71P6iXb1dcL.jpg) ## Available Options This product comes in different **Item Package Quantity** options. ## Questions & Answers **Q: How accurate are BACtrack breathalyzers?** A: BACtrack uses carefully-engineered technology to deliver reliable, consistent BAC results, with unparalleled accuracy. Several independent agencies have tested popular personal breathalyzer brands and found BACtrack to be the most accurate. **Q: How often do BACtrack breathalyzers need to be calibrated?** A: Our general recommendation is to have your BACtrack calibrated every 12 months, but it really depends on how your BACtrack is performing. With proper care and usage, we've seen that our devices can go for 1000's of tests before needing calibration. **Q: Where are BACtrack breathalyzers made?** A: Our products are designed in our San Francisco headquarters and manufactured in our overseas facilities. We aim to provide the most accurate, reliable & affordable breathalyzers on the market, while delivering exceptional support to match. **Q: What should I do if I'm having issues with my BACtrack breathalyzer?** A: In the rare instance where you are having trouble with your BACtrack, please send a message to our US-based customer success team directly from your Amazon orders page and they'll be happy to help you troubleshoot. **Q: Am I able to return my BACtrack breathalyzer if it stops working?** A: Yes, if your BACtrack ceases to function properly during the first year of operation, we will repair or replace the defective product at no additional charge to you. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Simple, Reliable, and Worth It *by C***N on March 25, 2026* I wasn’t expecting to like this as much as I do, but the BACtrack C6 has honestly been really solid. I mainly wanted something small and easy to carry, and the keychain size is perfect — I just keep it on me and don’t have to think about it. What matters most is accuracy, and from what I’ve seen, it’s been consistent. I’ve compared it a couple of times and the readings were pretty much in line, which gives me confidence it’s doing its job. It also warms up quick and gives results fast, so you’re not standing around waiting. The app connection is actually pretty cool too. I don’t use it every time, but it’s helpful when you want a better idea of where you’re at or how long it might take to get back to zero. Overall, it just feels reliable and easy to use. Nothing flashy, just works the way you want it to. Definitely a good buy if you want something you can trust and actually carry with you. ### ⭐⭐⭐⭐⭐ Genius *by N***Y on October 24, 2025* Works great, I love having it around as a fun party gimmick but also use it just to sort of “train” myself to know where I’m at with how much I’ve had to drink. Educational and fun in my opinion. Obviously not as reliable as a police/high grade BAC device, but is accurate and fun. ### ⭐⭐⭐⭐⭐ Easy to use and understand; fun *by J***H on May 1, 2021* I didn't want to spend a lot on a alcohol-level reader because I wasn't sure how often I'd use it and not sure how accurate any of them are so I bought this one because it was the cheapest by the company that seemed reliable and because it was so small as to be easily carried around in my pocket and because it allows you to see your results and track your history on your iPhone or Android by downloading the app. Also, I figured it was an easy thing to lose while out drinking, so didn't want to spend a hundred bucks on it. Setting up takes just a second and you can charge it with the USB port, so that's fast. It's intuitive so you can pretty much go from there. To test it, turn it on and check; it should be 0.0. Start drinking - wait 15-20 minutes - and take your first reading. The number should go up, maybe 0.01 or even 0.02. The more you drink, the higher it will go; that's how you know it's working. As to accuracy, I think so. There were two of us and mine rose in level slower than his; I weigh 30 pounds more than he does so it takes more alcohol to get me drunk than him, I think, plus I have a higher tolerance due to heavier use over the past 40 years, lol. The most important things to remember, as they will remind you in the instructions, is that you need to wait 15-20 minutes after each drink to get a good reading; if you check your level earlier, your body hasn't absorbed it enough. Don't worry that if you don't take a reading right away it won't be accurate; it's the opposite: you need to wait for it to be accurate. (Sort of the opposite of waiting 30 minutes after eating to go swimming, lol.) Also, this is for fun; no guarantees that you're not drunker than they say. Also, remember that you're expecting levels to be 0.0x, not 0.x, know what I mean? In many states, a 0.08 level will get you a DUI. NOT 0.8. If you blow a 0.8, you're already dead. So if you want to get the highest number if you're out with friends and think it's funny to see who gets drunkest, stop at 0.14, not 1.4. If you blow a 1.4, you're already dead. The only problem I've had is I haven't been able to figure out how to get the tester to switch back from when you use the app to just getting the result from the tester. You should be able to test it both ways, I think; not using the app you should be able to just test and if you want to store results and get other information, you switch the tester to a different setting. It's in the instructions but haven't gotten to it yet. The results seem accurate - the numbers went up the more I drank. Again, wait before you test or you'll get a crazy number, and that number might be really high (I think because the alcohol is still partly in your mouth or something like that). Also, breathe deep before you blow. I don't think you have to breathe really, really deep, but even if you do, it won't affect your result adversely. The higher-priced products may be more accurate and/or give you more bells and whistles, so if you plan on using it often or for purposes other than just for fun (or, if you drink a lot all the time and want to have something reliable that might last a long time, buy those). I'm glad I have this; I should've purchased one years ago. It does make me more aware of the effects of each drink and now I can measure how my level changes compared to how I feel after each drink. ## Frequently Bought Together - BACtrack C6 Keychain Breathalyzer | Professional-Grade Accuracy | Optional Wireless Smartphone Connectivity | Compatible w/ Apple iPhone, Google & Samsung Android Devices | Apple HealthKit Integration - BACtrack C-Series Breathalyzer Mouthpieces (20 Count) | Compatible with BACtrack C6 and C8 Breath Alcohol Testers | Not Compatible with BACtrack Mobile Smartphone Breathalyzer - BACtrack Breathalyzer Carrying Case (Small) | Compatible with: C6, C8, Mobile, GO, and Keychain Breathalyzers --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/58576914-c6-keychain-breathalyzer-professional-grade-accuracy-optional-wireless-smartphone-connectivity](https://www.desertcart.hr/products/58576914-c6-keychain-breathalyzer-professional-grade-accuracy-optional-wireless-smartphone-connectivity) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-22*