The Best Breathalyzers 2025

1. BACtrack MPS50 - Mouthpiece - for alcohol tester (pack of 50)

BACtrack MPS50 - mouthpiece

BACtrack MPS-50 Breathalyzer Mouthpiece Packaged Quantity: 50 / Pack Packaged Quantity: 50 / Pack

2. BACtrack - C8 Personal Breathalyzer - White/Black/Blue

BACTRACK Trace Professional Breathalyzer: Police-grade Xtend fuel cell sensor technology; 4-digit reverse-LCD screen; one-touch operation; saves the last 10 readings; lightweight design

Make more well-informed decisions while consuming alcohol with this BACtrack C8 personal breathalyzer. This device uses the same professional-grade breath analysis technology employed by law enforcement or clinics to detect alcohol intake levels. This BACtrack C8 personal breathalyzer uses ZeroLine technology to let you know when it's safe to drive.

3. BACtrack Trace Breathalyzer | Professional-Grade Accuracy | DOT & NHTSA Compliant | Portable Breath Alcohol Tester for Personal & Professional Use

Powered by BACtrack's state-of-the-art Xtend Platinum Fuel Cell Sensor technology, the BACtrack Trace Professional Breathalyzer delivers reliable and accurate BAC results, with police-grade accuracy. From being used as an alcohol detector for employees in businesses to acting as an alcohol tester for patients in clinics or treatment centers, the Trace is perfect for a variety of professional alcohol sensing, detecting and testing applications. And because of its small size and portable design, it's also works great as a personal BAC breathalyzer. Help friends and family make better decisions while drinking with the accurate and affordable BACtrack Trace alcohol breathalyzer.

PRO-GRADE ACCURACY - Powered by BACtrack's platinum-based Xtend Fuel Cell Sensor, the Trace utilizes the same professional-grade technology trusted by hospitals, clinics, and even law enforcement. ONE-BUTTON OPERATION - The BACtrack Trace is extremely easy to use. Simply insert the two included AAA batteries, power on your breathalyzer and begin testing. It's that easy. DOT/NHTSA COMPLIANT - Designed to meet the rigorous standards of expert alcohol testers, from roadside law enforcement to hospitals and treatment professionals, the Trace is approved by the USDOT & NHTSA as a breath alcohol screening device. SMALL & PORTABLE SIZE - The Trace is BACtrack's smallest police grade breathalyzer. It easily fits in a pocket or purse, making it easy to take with you anywhere you go. ONE YEAR WARRANTY - If your BACtrack Trace ceases to function properly during the first year of operation, we will repair or replace the defective product at no charge ***when purchased from an authorized retailer***

4. BACtrack - C6 Keychain Breathalyzer - White

Compatible with RSG6-AL and RS1B-AL remote start systems; lets you add alarm system components to your existing CompuStar remote start controller; 3-in-1 digital adjustable sensor

Keep yourself and friends safe after the party with this BACtrack keychain breathalyzer. It's the size of a 9V battery for easy portability, and it measures blood alcohol concentration when you breathe into it. Reliable results from this BACtrack keychain breathalyzer are delivered to your smartphone or other Bluetooth-capable device.

5. BACtrack Go Keychain Breathalyzer (White) | Ultra-Portable Pocket Keyring Alcohol Tester for Personal Use

Quickly and easily estimate your BAC with the small and affordable BACtrack Go Keychain Breathalyzer. Powered by BACtrack's proprietary Advanced Microcheck Sensor technology, the BACtrack Keychain provides reliable and accurate BAC results you can trust. It's ultra-compact, portable keychain design makes it perfect for personal BAC testing on the go - simply blow into the fold-out mouthpiece and results are returned in seconds.

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. ONE YEAR WARRANTY - If your BACtrack Go ceases to function properly during the first year of operation, we will repair or replace the defective product at no charge ***when purchased from an authorized retailer***

6. BACtrack S35 Breathalyzer Portable Breath Alcohol Tester

BACtrack's most convenient Elite Series breathalyzer! The BACtrack S35 Breathalyzer is one of the smallest, sleekest units on the market. Designed in California with ease of use and style in mind, the S35 harnesses a powerful proprietary sensing technology and a specially tuned algorithm, delivering results with unheard of accuracy at this price point. You won't believe the comfort and security you feel with this tiny unit in your pocket. Just pull it out, turn it on, and blow into it for five seconds. Your estimated BAC will display on the cool, Caribbean blue LCD screen.

Advanced semiconductor sensor provides trusted results Ultra-portable design and unmistakable, palm-of-hand feel Manufactured by BACtrack, the #1 most-trusted brand of breathalyzers, with over 13 years of experience providing the most accurate, convenient and affordable breath alcohol testing devices on the market Replaceable mouthpieces makes testing friends and relatives safe and easy

7. BACtrack MPS10 - Mouthpiece - for alcohol tester (pack of 10)

BACtrack MPS10 - mouthpiece

BACtrack Replacement Mouthpieces, 10pk: Made of hygienic plastic Removable Washable Reusable Fits BACtrack S80 Pro, BACtrack S75 Pro, BACtrack Element, BACtrack Select S30, BACtrack Select S50 and BACtrack Select S70 breathalyzers