--- product_id: 1114862 title: "BACtrack Keychain Breathalyzer | Portable BAC Alcohol Tester | Black | 3 Mouthpieces Included | For Home & Personal Use" brand: "bactrack" price: "$90.17" currency: USD in_stock: true reviews_count: 3 category: "Ba Ctrack" url: https://www.desertcart.us/products/1114862-bactrack-keychain-breathalyzer-portable-bac-alcohol-tester-black-3-mouthpieces store_origin: US region: United States of America --- # Ultra-portable keychain size Seconds to BAC result One-year warranty coverage BACtrack Keychain Breathalyzer | Portable BAC Alcohol Tester | Black | 3 Mouthpieces Included | For Home & Personal Use **Brand:** bactrack **Price:** $90.17 **Availability:** ✅ In Stock ## Summary > 🔑 Know Your Limit, Own the Night. ## Quick Answers - **What is this?** BACtrack Keychain Breathalyzer | Portable BAC Alcohol Tester | Black | 3 Mouthpieces Included | For Home & Personal Use by bactrack - **How much does it cost?** $90.17 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/1114862-bactrack-keychain-breathalyzer-portable-bac-alcohol-tester-black-3-mouthpieces) ## Best For - bactrack enthusiasts ## Why This Product - Trusted bactrack brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Instant BAC Readings:** Advanced MicroCheck Sensor delivers accurate blood alcohol content results in seconds, so you never miss a beat. - • **Reliable Peace of Mind:** Backed by a one-year warranty, this device is your trusted companion for responsible socializing and safe decisions. - • **Hygienic Breath Capture:** Innovative fold-out mouthpiece ensures precise breath sampling while blocking airborne contaminants. - • **Pocket-Sized Convenience:** Compact, lightweight design fits effortlessly on your keychain or in your pocket—always ready when you are. - • **Effortless One-Button Operation:** No complicated setup—just power on and test your BAC with a single press, perfect for on-the-go professionals. ## Overview The BACtrack Keychain Breathalyzer is a sleek, ultra-portable device featuring proprietary MicroCheck Sensor technology that delivers fast, reliable BAC readings in seconds. Designed for ease of use with one-button operation and a hygienic fold-out mouthpiece, it fits seamlessly on your keyring or in your pocket. Supported by a one-year warranty, this breathalyzer empowers responsible professionals to make informed decisions and stay safe, wherever the night takes them. ## Description Buy BACtrack Keychain Breathalyzer (Black) | Ultra-Portable Pocket Keyring Alcohol Tester for Personal Use on desertcart.com ✓ FREE SHIPPING on qualified orders Review: Easy to Use, Seems Accurate - Lasted Over Five Years - This is an update to my original review from over five years ago. My unit lasted for over 5.5 years before it would display only '0.0' during a test. Everything else worked so I assume the sensor finally wore out and/or it needed a factory calibration. (Note: BACtrack recommends periodic factory calibrations, but at $19.99/each it's simply not worth it for a $25 unit.) The BACtrack Keychain was definitely a cost-effective, reasonably-accurate solution for me at the time. But in the interest of greater accuracy and lifecycle costs, I decided to replace it with a more expensive, more accurate self-calibrating unit with a user-replaceable sensor. That said, I still give it a five star rating based on my overall five year experience. 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! Review: The BACTrack is a great product for what it is- a small device that ... - The BACTrack is a great product for what it is- a small device that gives you an idea, or perhaps a means to gauge your level of intoxication. I find that it's best case usage scenario is to follow the instructions to the letter - i.e. don't eat/drink, consume alcohol, or smoke for 20 minutes or more before testing yourself. Wait an additional 20 minutes and test again. The second test is to determine if alcohol is still metabolizing in your body, due to the way it is absorbed by the body. Using the BACTrack in this manner allows me to gauge whether my blood-alcohol-concentration is rising or falling. As far as accuracy goes, it's no fuel cell-based breathalyzer employed by law enforcement, but it also wasn't $150 or more and doesn't require weekly calibration. Sensors and technology have come a long way in the last 20 years and there has been a market for these types of devices. I seem to recall multiple DUI offenders having breathalyzers installed in their vehicles as part of their sentence, in which a sensor similar to the one in this BACTrack would gauge their BAC and allow/deny operation of the vehicle. While the BACTrack explicitly says the device cannot be used as evidence in court, I believe what the device is really great for is to serve as a reminder of one's civil etiquette. Your responsibility to operate a motor vehicle safely, and discourage you from getting behind the wheel of your tank because now you're aware that you're a bit plowed. This is my second BACTrack and it works just as well as the previous one I owned, which was stolen by a friend during a long day of inebriation. He still uses it and hasn't had to calibrate it yet. I'm curious to have mine calibrated, but the instructions state it only needs to be calibrated every 6 months with light use. Perhaps I need to step up my game.. ## Features - QUICKLY & EASILY ESTIMATE YOUR BAC - Proprietary Advanced MicroCheck Sensor technology delivers results in seconds. - EASY TO USE - One-button operation means you simply power on your breathalyzer keychain and begin testing your blood alcohol content in seconds. It's that easy! - 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. - OPTIMAL BREATH CAPTURE - The innovative fold-out mouthpiece ensures only your breath goes into the alcohol tester, while other airborne pollutants are kept out. - ONE-YEAR WARRANTY - If your BACtrack Keychain ceases to function properly during the first year of operation, we will repair or replace the defective device. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B006536ZXC | | ASIN | B006536ZXC | | Batteries | 1 AAA batteries required. (included) | | Best Sellers Rank | #42,861 in Health & Household ( See Top 100 in Health & Household ) #6 in Personal Breathalyzers #3,127 in Sales & Deals | | Brand Name | BACtrack | | Customer Reviews | 3.9 3.9 out of 5 stars (4,941) | | Date First Available | November 7, 2011 | | Department | unisex-adult | | Global Trade Identification Number | 00850167002634 | | Included Components | 1 x AAA Battery, 3 x Breathalyzer Mouthpieces | | Is Discontinued By Manufacturer | No | | Item Dimensions | 1.45 x 0.55 x 2.44 inches | | Item Type Name | Bactrack Breathalyzer Keychain | | Item Weight | 3.2 Ounces | | Item model number | BT-KC10 | | Manufacturer | BACtrack | | Manufacturer | BACtrack | | Model | BT-KC10 | | Product Dimensions | 1.45 x 0.55 x 2.44 inches; 3.2 ounces | | Style Name | Minimalist Utility | | UPC | 850167002672 132017753195 069060190106 069060197792 850167002634 885280057803 | | Unit Count | 1 Count | | Warranty Description | One Year | ## Product Details - **Brand:** BACtrack - **Item Weight:** 3.2 Ounces - **Item dimensions L x W x H:** 1.45 x 0.55 x 2.44 inches - **Style:** Minimalist Utility - **UPC:** 850167002672 132017753195 069060190106 069060197792 850167002634 885280057803 ## Images ![BACtrack Keychain Breathalyzer | Portable BAC Alcohol Tester | Black | 3 Mouthpieces Included | For Home & Personal Use - Image 1](https://m.media-amazon.com/images/I/611IZaa-EDL.jpg) ## Available Options This product comes in different **Color, 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 breathalyzers are designed by our team of talented engineers at our San Francisco headquarters and manufactured in our overseas facilities. We aim to provide the most accurate, innovative, reliable & affordable alcohol testers on the market. **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 ### ⭐⭐⭐⭐⭐ Easy to Use, Seems Accurate - Lasted Over Five Years *by G***H on March 10, 2014* This is an update to my original review from over five years ago. My unit lasted for over 5.5 years before it would display only '0.0' during a test. Everything else worked so I assume the sensor finally wore out and/or it needed a factory calibration. (Note: BACtrack recommends periodic factory calibrations, but at $19.99/each it's simply not worth it for a $25 unit.) The BACtrack Keychain was definitely a cost-effective, reasonably-accurate solution for me at the time. But in the interest of greater accuracy and lifecycle costs, I decided to replace it with a more expensive, more accurate self-calibrating unit with a user-replaceable sensor. That said, I still give it a five star rating based on my overall five year experience. 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! ### ⭐⭐⭐⭐⭐ The BACTrack is a great product for what it is- a small device that ... *by G***T on May 17, 2017* The BACTrack is a great product for what it is- a small device that gives you an idea, or perhaps a means to gauge your level of intoxication. I find that it's best case usage scenario is to follow the instructions to the letter - i.e. don't eat/drink, consume alcohol, or smoke for 20 minutes or more before testing yourself. Wait an additional 20 minutes and test again. The second test is to determine if alcohol is still metabolizing in your body, due to the way it is absorbed by the body. Using the BACTrack in this manner allows me to gauge whether my blood-alcohol-concentration is rising or falling. As far as accuracy goes, it's no fuel cell-based breathalyzer employed by law enforcement, but it also wasn't $150 or more and doesn't require weekly calibration. Sensors and technology have come a long way in the last 20 years and there has been a market for these types of devices. I seem to recall multiple DUI offenders having breathalyzers installed in their vehicles as part of their sentence, in which a sensor similar to the one in this BACTrack would gauge their BAC and allow/deny operation of the vehicle. While the BACTrack explicitly says the device cannot be used as evidence in court, I believe what the device is really great for is to serve as a reminder of one's civil etiquette. Your responsibility to operate a motor vehicle safely, and discourage you from getting behind the wheel of your tank because now you're aware that you're a bit plowed. This is my second BACTrack and it works just as well as the previous one I owned, which was stolen by a friend during a long day of inebriation. He still uses it and hasn't had to calibrate it yet. I'm curious to have mine calibrated, but the instructions state it only needs to be calibrated every 6 months with light use. Perhaps I need to step up my game.. ### ⭐ Not worth the money *by M***N on February 1, 2026* Worked for about 2 days and then it stopped working. I changed the barriers and it still didn’t work. I’ll have a few drinks and it will say 00 or it will say Failed so not very accurate. ## Frequently Bought Together - BACtrack Keychain Breathalyzer (Black) | Ultra-Portable Pocket Keyring Alcohol r for Personal Use - BACtrack Keychain Breathalyzer Mouthpieces (20 Count) | Compatible with BACtrack Keychain, Go, Vio and T60 Breath Alcohol Testers | Not Compatible with BACtrack C6 and C8 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.us/products/1114862-bactrack-keychain-breathalyzer-portable-bac-alcohol-tester-black-3-mouthpieces](https://www.desertcart.us/products/1114862-bactrack-keychain-breathalyzer-portable-bac-alcohol-tester-black-3-mouthpieces) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-10*