10 Best Keychain Breathalyzers
#1
Fandcy Alcohol Breathalyzer, Portable Breath Tester with Accurate Digital LCD Display, Personal Alcohol Breathalyzer Tester with Reusable Mouthpieces, Convenient Lightweight Pocket Design
Brand: fandcy
$19.95
⭐ 4.7
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- Police-grade accuracyOur alcohol breathalyzer tester uses professional-grade technology and sensitive semiconductor sensors for gas detection, ensuring accurate and reliable results every time.
- Easy-to-read LCD displayAll test results are displayed on the LCD screen, making it easy to read and understand. The display also shows the battery level and issues an alarm when the battery is low.
- Convenient and reliableOur advanced high-precision nanotechnology sensors provide accurate results that reflect your actual alcohol level. Plus, the reusable mouthpieces are made of edible PP, ensuring the health and safety of you and your family.
- Reusable mouthpiecesThe breathalyzer comes with 4 replaceable mouthpieces, making it easy to share with family and friends. The mouthpieces are also reusable, making it an eco-friendly choice.
- Portable and practicalOur alcohol breathalyzer tester is compact and lightweight, making it easy to carry in your pocket, bag, or car. The packaging includes a tester, instruction manual, 4 mouthpiece, making it a perfect gift for anyone who wants to ensure safe driving after drinking.
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#2
Breath Guard Buddy Breathalyzers for Alcohol - No Contact Portable Breathalyzer Keychain Fast Accurate Home Alcohol Test, BAC Alcohol Breathalyzer Tester with Easy USB-C Charging
Brand: FREEZE2TRIM
$29.00
⭐ 4.1
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- - : Ensure your safety with Breath Guard Buddy's advanced contactless technology a fast and hygienic blood alcohol breathalyzer without the need for disposable mouthpieces.
- & : Get reliable BAC breathalyzer alcohol checker readings in under 30 seconds. Our mini breathalyzer is calibrated for accuracy, providing clear feedback with easy-to-understand color indicators for different BAC levels.
- : Our keychain breathalyzer has a compact and lightweight design with USB-C fast charging ensures your personal breathalyzers is always ready, whether you're at a party, a family gathering, or just enjoying a night out.
- & -: One-button operation means no fumbling with complicated settings. The alcohol percentage tester has a bright, crisp LCD display providing excellent visibility, even in low light conditions.
- : Designed to be discreet and portable, attach your Breathguard Buddy pocket breathalyzer for alcohol to your keychain and take it wherever you go. A smart choice for responsible alcohol consumption.
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#3
Portable Breathalyzer, Pro-Grade High Accuracy Breathalyzers for Alcohol with IPS Digital Display & Personal Breathalyzer 10 Mouthpieces, Ideal USB Rechargeable Alcohol Tester for Car/Home Use (Black)
Brand: Diowner
$99.00
⭐ 4.8
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- 0.000% 4-Digit Precision for Safer DrivingDiowner 2025 Pro-grade breathalyzers for alcohol measures your BAC with precision up to 3 decimal places (e.g., 0.003%). With a rapid 3-second testing time, our alcohol breathalyzer delivers instant and reliable results in real-time, helping you effectively avoid drunk driving risks and ensuring every drive is safe and secure
- Police-Grade Accurate BreathalyzerTraditional breathalyzers for alcohol may mistakes acetone from food for alcohol, while our alcohol breathalyzer tester utilizes advanced electrochemical sensor technology to accurately identify alcohol, matching police-grade precision for accurate results, helping you quickly decide if you're fit to drive and ensuring safety
- USB Rechargeable Alcohol TesterUnlike most battery-powered breathalyzers, our portable breathalyzer features convenient USB charging, cutting costs & eliminating frequent battery replacements, while saving energy and reducing environmental impact. You can charge it with any USB device - a single charge lasts up to 125 days, making the alcohol breathalyzer tester portable and ready for testing anytime, anywhere
- Voice Broadcast & Color AlertOur breathalyzers for alcohol features an IPS HD display with a unique BAC voice broadcast and color alert system. Even in a state of impaired awareness, you can effortlessly obtain test results through clear voice prompts and vivid color changes, without the need to strain to read the screen
- MINI Portable BreathalyzerThis mini alcohol breathalyzer tester weighs just 1.34 oz, easily fitting in one hand and slipping into a pocket or purse. Its unique rotating built-in mouthpiece design allows the breathalyzer's mouthpiece to tuck neatly into the slot when not in use, saving space, keeping clean, and preventing loss
- 10 Mouthpieces & Powerful 1500-recordsIncludes 10 replaceable alcohol breathalyzer mouthpieces, allowing your family or friends to test anytime with dedicated mouthpieceseliminating frequent purchases & saving costs. And powerful 1500-record memory system helps you easily track your and your family's drinking patterns & alcohol metabolism to plan smarter
- Ideal Gift for Safe DrivingEnsures safe driving after every home party or business dinner. An ideal gift for your family, friends, or colleagues, providing safety and making every gathering more secure
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#4
Breathalyzer Keychain, Professional-Grade High Accuracy Alcohol Tester, Portable Breathalyzer with LCD Digital Display for Home Use(5 Mouthpieces)
Brand: FOTN
$43.00
⭐ 4.1
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- Professional High-Precision Sensor The EK300 breathalyzer is 2024 newest version , upgraded with the great 4.0 sensor to ensure more accurate measurement results. It has gained unanimous recognition from experts, engineers, and individuals, and has FDA, CE, and ROSI certification certificates. After you drink alcohol, perhaps you need an alcohol tester that can be your good companion.
- Powerful Features1. Record 20 test records; 2. Quickly detect results within 5 seconds; 3. Accurate to 3 decimal places; 4. It will automatically shut down when not in use.
- Easy to Operate After turning on, wait for 20 seconds for preheating time, then start blowing air for 3-5 seconds to get the result. When the test result is higher than 0.050% BAC or 0.500 BAC, a "di di di..." alarm will sound to alert you and display red.
- Portable & Replaceable Mouthpieces The alcohol tester is very lightweight and small, only 50gmaking it easy to put in your wallet or pocket, and comes with 10 interchangeable mouthpieces; The mouthparts are made of edible PP and can be cleaned and reused; Alcohol testers are perfect for placing in pockets, backpacks, cars, and other locations to ensure safe driving after drinking;
- Package Include: 1*breathalyzer, 5* replaceable mouthpieces, 1*instruction manual. If you encounter any usage or pre purchase issues, please feel free to contact us 24 hours a day. Thank you!
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#5
Chamgeco Alcohol Checker Breath Alcohol Tester, Portable Alcohol Breathalyzer Tester with Keychain, Professional-Grade Accuracy Digital Alcohol Detector Breath Checker Analyzer with 5 Mouthpieces
Brand: Chamgeco
$12.99
⭐ 4.1
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- Easy To Use: Simply press the power button for 3 seconds to start, wait 10 seconds for heating, then blow for 4-5 seconds. Get your accurate result in just 3-5 seconds.
- Portable and Convenient Breathalyzer: Take this professional breathalyzer tester with you wherever you go. It conveniently fits in your pocket, allowing you to check your BAC at parties or gatherings after consuming alcohol. Always prioritize safety and call an Uber if you've been drinking.
- Professional-Grade Accurate Breathalyzer for Alcohol: Rest assured that this breathalyzer provides precise BAC monitoring. It utilizes a high-precision semiconductor alcohol sensor, ensuring you avoid excessive drinking. Wait at least 25 minutes after consuming alcohol for the most reliable results.
- Danger Warning: Designed for responsible drinkers, this breathalyzer serves as a valuable tool. If the test result exceeds 0.05% BAC, the LCD screen will display "danger," reminding you to avoid excessive drinking or the risk of a DUI.
- LCD Display: The breathalyzer features an automatic shutdown function to conserve power. The LCD display provides clear visibility of all test results and the battery level. It also alerts you when the battery is running low.
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#6
BACtrack Go Gen2 Breathalyzer Keychain Portable Breath Alcohol Tester Keyring Personal Breathalyser, Black
Brand: BACtrack
$74.97
⭐ 4.6
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- Gen2 breathalyzer products are specifically engineered for the AU driving limit of 0.05% BAC
- Proprietary Advanced MicroCheck Sensor technology delivers reliable, accurate BAC results
- Innovative fold-out mouthpiece ensures only your breath goes into the breathalyser
- Fits inside a purse or pocket and can be easily used as a keychain
- Press power and begin your alcohol test in seconds
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#7
BACtrack Go Keychain Breathalyzer, Portable Keyring Breath Alcohol Tester, White
Brand: BACtrack
$69.97
⭐ 4.6
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- 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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#8
Sonicefit Portable Breath Alcohol Tester, Alcohol Breathalyzer with Accurate Digital LCD Display, Portable Keychain Breath Analyzer with 5 Reusable Mouthpieces, Convenient Lightweight Pocket Design
Brand: Sonicefit
$12.99
⭐ 4.4
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- Police-grade Accuracy and High SensitiveMeasures alcohol concentration in the human body with high precision. Equipped with a sensitive semi-conductor sensor, it detects a wide range of alcohol levels: 0.00-0.19% BAC, 0.0-1.9g/l (or 0.00-0.95mg/l BRAC). Provides fast results within 3-5 seconds, ensuring accurate readings (error less than 0.01% BAC).
- Large Digital LCD Screen, Easy to ReadFeatures a spacious LCD screen that displays results clearly and prominently. Allows for easy reading of the test results without any confusion.
- Portable and ConvenientDesigned to be compact and lightweight, weighing only 81.6g. Comes with a handy metal chain for easy carrying. Whether you want to keep it in your pocket or hang it with your keys, it's always readily accessible. Enables you to use it anywhere and anytime, ensuring safe driving after consuming alcohol.
- With 5 Reusable MouthpiecesThis Breath Alcohol Tester with 5 reusable mouthpieces offers a seamless replacement for old or damaged alcohol breath testers. Simple to use and highly reliable, ensuring a hassle-free experience for users. Plus, the reusable mouthpieces are made of edible PP, ensuring the health and safety of you and your family.
- Practical and ReliableSonicefit alcohol breathalyzer tester is compact and lightweight, making it easy to carry in your pocket, bag, or car. The packaging includes a tester, instruction manual, total 5 mouthpiece, making it a perfect gift for anyone who wants to ensure safe driving after drinking.
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#9
BACtrack C6 Gen2 Breathalyzer Keychain Smartphone Portable Breath Alcohol Tester Bluetooth Personal Breathalyser, Blue
Brand: BACtrack
$119.97
⭐ 4.8
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- Gen2 breathalyzer products are specifically engineered for the AU driving limit of 0.05% BAC
- Advanced BluFire Fuel Cell Sensor trusted by hospitals and clinics
- Locks out ambient air, fumes, and other airborne gases from the breath test sample
- ZeroLine Technology estimates when your BAC will return to 0.00%
- Choose to wirelessly connect to your smartphone via Bluetooth or as a standalone device
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#10
BACtrack Go Gen2 Breathalyzer Keychain Portable Breath Alcohol Tester Keyring Personal Breathalyser, Blue
Brand: BACtrack
$74.97
⭐ 4.7
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- Gen2 breathalyzer products are specifically engineered for the AU driving limit of 0.05% BAC
- Proprietary Advanced MicroCheck Sensor technology delivers reliable, accurate BAC results
- Innovative fold-out mouthpiece ensures only your breath goes into the breathalyser
- Fits inside a purse or pocket and can be easily used as a keychain
- Press power and begin your alcohol test in seconds
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