20 Best Cheap Breathalyzer [2024]

Are you looking for the best cheap breathalyzer? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling cheap breathalyzer.

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# Preview Product
1 BACtrack Go Keychain Breathalyzer (White) | Ultra-Portable Pocket Keyring Alcohol Tester for... BACtrack Go Keychain Breathalyzer (White) | Ultra-Portable Pocket Keyring Alcohol Tester for...
2 QTlier Portable Breathalyzer with LCD Digital Display for Personal, Professional-Grade... QTlier Portable Breathalyzer with LCD Digital Display for Personal, Professional-Grade...
3 Portable Alcohol Tester, Professional Breathalyzer Digital LCD Display Auto Power Off Sound Alarm... Portable Alcohol Tester, Professional Breathalyzer Digital LCD Display Auto Power Off Sound Alarm...
4 Alcohol Breathalyzer Portable Breath Tester - Amacam AT-01 Accurate Digital Display Convenient... Alcohol Breathalyzer Portable Breath Tester - Amacam AT-01 Accurate Digital Display Convenient...
5 BACtrack Keychain Breathalyzer (Blue) | Ultra-Portable Pocket Keyring Alcohol Tester for Personal... BACtrack Keychain Breathalyzer (Blue) | Ultra-Portable Pocket Keyring Alcohol Tester for Personal...
6 BACtrack S80 Breathalyzer | Professional-Grade Accuracy | DOT & NHTSA Approved | FDA 510(k) Cleared... BACtrack S80 Breathalyzer | Professional-Grade Accuracy | DOT & NHTSA Approved | FDA 510(k)...
7 BACtrack Element Breathalyzer | Professional-Grade Accuracy | DOT & NHTSA Compliant | Portable... BACtrack Element Breathalyzer | Professional-Grade Accuracy | DOT & NHTSA Compliant | Portable...
8 BACtrack Trace Breathalyzer | Professional-Grade Accuracy | DOT & NHTSA Compliant | Portable Breath... BACtrack Trace Breathalyzer | Professional-Grade Accuracy | DOT & NHTSA Compliant | Portable...
9 BACtrack Professional Breathalyzer Mouthpieces (500 Count) | Compatible with BACtrack S80, Trace,... BACtrack Professional Breathalyzer Mouthpieces (500 Count) | Compatible with BACtrack S80, Trace,...
10 BACtrack C6 Keychain Breathalyzer | Professional-Grade Accuracy | Optional Wireless Smartphone... BACtrack C6 Keychain Breathalyzer | Professional-Grade Accuracy | Optional Wireless Smartphone...
11 Free Breathalyzer Test T-Shirt Popular Gift Idea Free Breathalyzer Test T-Shirt Popular Gift Idea
12 BACtrack Scout Breathalyzer | Professional-Grade Accuracy | DOT & NHTSA Compliant | Portable Breath... BACtrack Scout Breathalyzer | Professional-Grade Accuracy | DOT & NHTSA Compliant | Portable...
13 GREENWON Breathalyzer Keychain Digital Alcohol Tester Detector Breath Analyzer Audible Alert... GREENWON Breathalyzer Keychain Digital Alcohol Tester Detector Breath Analyzer Audible Alert...
14 BACtrack Professional Breathalyzer Mouthpieces (1000 Count) | Compatible with BACtrack S80, Trace,... BACtrack Professional Breathalyzer Mouthpieces (1000 Count) | Compatible with BACtrack S80,...
15 LAMJAD Breathalyzer, Portable Alcohol Tester with 31 Mouthpieces, Professional Tester with Digital... LAMJAD Breathalyzer, Portable Alcohol Tester with 31 Mouthpieces, Professional Tester with...
16 BACtrack C8 Breathalyzer | Professional-Grade Accuracy | Optional Wireless Smartphone Connectivity |... BACtrack C8 Breathalyzer | Professional-Grade Accuracy | Optional Wireless Smartphone Connectivity...
17 Breathalyzer,2022 Upgrade Professional-Grade Accuracy Alcohol Tester with Digital Blue LCD Display... Breathalyzer,2022 Upgrade Professional-Grade Accuracy Alcohol Tester with Digital Blue LCD...
18 Portable Breathalyzer to Test Alcohol, Professional Digital Alcohol Tester with 12 Mouthpieces, Blue... Portable Breathalyzer to Test Alcohol, Professional Digital Alcohol Tester with 12 Mouthpieces,...
19 Breathalyzer, Professional-Grade Accuracy Breathalyzer to Test Alcohol, 5 Mouthpieces | LED Display... Breathalyzer, Professional-Grade Accuracy Breathalyzer to Test Alcohol, 5 Mouthpieces | LED...
20 ZBK Breathalyzer Rechargeable | Professional-Grade Accuracy | Portable Breath Alcohol Tester for... ZBK Breathalyzer Rechargeable | Professional-Grade Accuracy | Portable Breath Alcohol Tester for...
SaleBestseller No. 1
BACtrack Go Keychain Breathalyzer (White) | Ultra-Portable Pocket Keyring Alcohol Tester for...
  • 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...
  • OPTIMAL BREATH CAPTURE - The innovative fold-out mouthpiece ensures only your breath goes into the alcohol tester, while other airborne pollutants are...
Bestseller No. 2
QTlier Portable Breathalyzer with LCD Digital Display for Personal, Professional-Grade...
  • ✅ACCURATE TESTING: This alcohol tester is composed of advanced high-precision nanotechnology sensor, which can accurately feedback your actual...
  • ✅PORTABLE BREATHALYZER: The professional breathalyzer is only 126x51x23mm, and weighs only 90g, which is very convenient to carry on the go out and...
  • ✅TIME SAVING AND CONVENIENCE: Environmental protection and energy saving, no need to replace the battery regularly, reduce the pollution of the...
  • ✅EASY TO USE: After you get the product insert the mouthpiece into the mouthpiece insert slot, long press the start button, after the "Beep" sound...
  • ✅PERFECT AFTER-SALES SERVICE: If you encounter any problems in the use of the process, please contact us in a timely manner, our after-sales team...
SaleBestseller No. 3
Portable Alcohol Tester, Professional Breathalyzer Digital LCD Display Auto Power Off Sound Alarm...
  • 【PRECISE & SENSITIVE】With advanced semi-conductor sensor ensures accurate readout in short time.If the alcohol content is higher than 0.05%...
  • 【PORTABLE & COMPACT】Lightweight breath alcohol tester easily fits in a pocket or purse, making it a great portable breathalyzer for any occasion....
  • 【EASY TO USE】Just plug in 2 AAA batteries,long press the breath detector switch 1-2 seconds,wait 10 seconds to warm up,the breathalyzer start...
  • 【BACKLIGHT LCD DISPLAY】With the LCD display, it is easier to read even in less than optimal light conditions. Make the breathalyzer turn off...
  • 【CLEAN & HYGIENIC】Package includes 5 mouthpieces.With replaceable blow gun for air intake, the measurement is more accurate and safe,and the...
Bestseller No. 4
Alcohol Breathalyzer Portable Breath Tester - Amacam AT-01 Accurate Digital Display Convenient...
  • ⭐️ EASY TO USE: This very portable breath tester can be with you at all times. Keep it either on your keyring, handbag, purse or on your belt...
  • ⭐️ DURABLE COMPACT DESIGN: The AT-01 has been designed with the you the motorist in mind.
  • ⭐️ ACCURATE READINGS: This tester has been used and appreciated as a premium product by motorists in the USA and around the world.
  • ⭐️ LARGE LCD SCREEN: The background light helps you to see the read-out clearly. So avoiding any confusion and keeping you safe to go.
  • ⭐️ DIGITAL ALCOHOL BREATHALYZER: This is the latest in breathalyzer design. Plug and Play. Not complicated to set-up
Bestseller No. 5
BACtrack Keychain Breathalyzer (Blue) | Ultra-Portable Pocket Keyring Alcohol Tester for Personal...
  • 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 keychain breathalyzer and begin testing in seconds. It's that easy!
  • TAKE IT WITH YOU ANYWHERE - The ultra-compact BACtrack breathalyzer keychain easily fits in a pocket or purse, making it a great portable breathalyzer...
  • OPTIMAL BREATH CAPTURE - The innovative fold-out mouthpiece ensures only your breath goes into the alcohol tester, while other airborne pollutants are...
  • ONE YEAR WARRANTY - If your BACtrack Keychain ceases to function properly during the first year of operation, we will repair or replace the defective...
Bestseller No. 6
BACtrack S80 Breathalyzer | Professional-Grade Accuracy | DOT & NHTSA Approved | FDA 510(k) Cleared...
  • #1 RATED BREATHALYZER BY WIRECUTTER - "After 65 hours of research, which included getting intoxicated at a police station to test personal...
  • PRACTICAL & EASY TO USE - Blow for 5 seconds and your BAC results are displayed 10 seconds later on a bright, easy to read LCD screen. Alcohol tester...
  • THE MOST ACCURATE BREATHALYZER AVAILABLE - In your efforts to drive more responsibly you need the most accurate results. While some breath testers...
  • DOT APPROVED IN ALL 50 STATES - FDA 510(k) CLEARED - A portable alcohol tester designed to surpass the most rigorous standards of expert alcohol...
SaleBestseller No. 7
BACtrack Element Breathalyzer | Professional-Grade Accuracy | DOT & NHTSA Compliant | Portable...
  • PRO-GRADE ACCURACY - Powered by BACtrack's platinum-based Xtend Fuel Cell Sensor, the Element utilizes the same professional-grade technology trusted...
  • SIMPLE, ONE-BUTTON OPERATION - The BACtrack Element is extremely easy to use. Simply insert the two included AAA batteries, power on your breathalyzer...
  • DOT/NHTSA COMPLIANT - Designed to meet the rigorous standards of expert alcohol screeners, from roadside law enforcement to hospital employees &...
  • SMALL & PORTABLE SIZE - The Element is BACtrack's smallest professional breathalyzer, making it easy to take with you anywhere you go; Measuring just...
Bestseller No. 8
BACtrack Trace Breathalyzer | Professional-Grade Accuracy | DOT & NHTSA Compliant | Portable Breath...
  • POLICE-GRADE ACCURACY - Powered by BACtrack's platinum-based Xtend Fuel Cell Sensor, the Trace utilizes the same police-grade technology trusted by...
  • SIMPLE, ONE-BUTTON OPERATION - The BACtrack Trace is extremely easy to use. Simply insert the two included AAA batteries, power on your breathalyzer...
  • DOT/NHTSA APPROVED - The BACtrack Trace was designed to meet the rigorous standards of expert alcohol screeners, from roadside law enforcement to...
  • SMALL & PORTABLE SIZE - The Trace is BACtrack's smallest professional breathalyzer, making it easy to take with you anywhere you go. Measuring just...
  • The warm up time is 10-20 seconds and the blowing time is 5 seconds
Bestseller No. 9
BACtrack Professional Breathalyzer Mouthpieces (500 Count) | Compatible with BACtrack S80, Trace,...
  • Compatible with the following BACtrack Breathalyzers: S82, S80, S78, S75, S70, S50, S30, Element & Trace
  • Removable, washable & reusable
  • Makes testing your friends and family easy and sanitary
  • Manufactured by BACtrack, the #1 most-trusted brand of breathalyzers, with over 16 years of experience providing the most accurate, convenient and...
Bestseller No. 10
BACtrack C6 Keychain Breathalyzer | Professional-Grade Accuracy | Optional Wireless Smartphone...
  • ESTIMATE YOUR ALCOHOL LEVEL WITH PRO-GRADE ACCURACY - Powered by BACtrack's patented BluFire Fuel Cell Sensor, the C6 utilizes the same...
  • KNOW WHEN YOUR BAC WILL RETURN TO 0.00% - BACtrack's innovative ZeroLine technology estimates the time until your BAC is 0.00%, allowing you to...
  • CALL AN UBER - Remember, the only safe time to drive is when your BACtrack shows 0.00%. Anything above that? You can call an Uber directly from the...
  • OPTIONAL WIRELESS CONNECTIVITY - Use the BACtrack C6 with or without your smartphone. "Standalone Mode" delivers your BAC results directly to your C8....
  • ONE YEAR WARRANTY - If your BACtrack C6 ceases to function properly during the first year of operation, we will repair or replace the defective...
Bestseller No. 11
Free Breathalyzer Test T-Shirt Popular Gift Idea
  • Non-traditional T-Shirt design team that caters to the alternative lifestyle and fringe groups. Tone of design: Funny, humorous, ironic, satirical,...
  • Target customers include active lifestyle, fashion t-shirt collectors, people looking for unique gift ideas for holidays and events. Target occasions:...
  • Lightweight, Classic fit, Double-needle sleeve and bottom hem
Bestseller No. 12
BACtrack Scout Breathalyzer | Professional-Grade Accuracy | DOT & NHTSA Compliant | Portable Breath...
  • PROFESSIONAL-GRADE ACCURACY - Powered by BACtrack's platinum-based Xtend Fuel Cell Sensor, the Scout utilizes the same pro-grade technology trusted by...
  • SIMPLE, ONE-BUTTON OPERATION - The BACtrack Scout is extremely easy to use. Simply insert the two included AAA batteries, power on your breathalyzer...
  • DOT/NHTSA COMPLIANT - Designed to meet the rigorous standards of expert alcohol screeners, from roadside law enforcement to hospital employees &...
  • SMALL & PORTABLE SIZE - The Scout is BACtrack's smallest professional breathalyzer, making it easy to take with you anywhere you go. Measuring just...
  • ONE YEAR WARRANTY - BACtrack stands behind every product we manufacture and sell, but if during the first year of operation any unit ceases to...
Bestseller No. 13
GREENWON Breathalyzer Keychain Digital Alcohol Tester Detector Breath Analyzer Audible Alert...
  • -★- HIGH ACCURACY & SENSITIVE . This breath alcohol tester is used to measure concentration of the alcohol in human body. With sensitive...
  • -★- ENERGY-SAVING & AUTO-OFF FUNCTION. Powered by 2 x AAA batteries( not included, but commonly available), this breathalyzer will automatically...
  • -★- FASHION KEYCHAIN DESIGN. This alcohol breathalyzer is space-saving, lightweight. It is easy to hold and carry. Pocket-size allows you take it...
  • -★- LARGE DIGITAL LCD SCREEN This alcohol breathalyzer has a large LCD screen with orange background Light. It is convenient for you to use this...
  • -★- 30 DAYS MONEY BACK GUARENTEE,LIFETIME WERRANTY.
SaleBestseller No. 14
BACtrack Professional Breathalyzer Mouthpieces (1000 Count) | Compatible with BACtrack S80, Trace,...
  • Compatible with the following BACtrack Breathalyzers: S82, S80, S78, S75, S70, S50, S30, Element & Trace
  • Removable, washable & reusable
  • Makes testing your friends and family easy and sanitary
  • Manufactured by BACtrack, the #1 most-trusted brand of breathalyzers, with over 16 years of experience providing the most accurate, convenient and...
Bestseller No. 15
LAMJAD Breathalyzer, Portable Alcohol Tester with 31 Mouthpieces, Professional Tester with Digital...
  • 👍 【High-precision alcohol tester】 The professional alcohol concentration tester AT-6000 uses an advanced semiconductor sensor to ensure an...
  • 👍 【One-button operation】 Turn on the tester and wait 15 seconds for it to warm up, then start testing and the result will be displayed on the...
  • 👍 【Sound warning】 If the BAC result exceeds certain values, this breathalyzer will emit different tones to inform you so that you can make a...
  • 👍 【31 interchangeable mouthpieces】 With 31 reusable mouthpieces, it will be much more convenient for your family or friends to test. For more...
  • 👍 【Small and Portable】 This breathalyzer is smaller than an iPhone and can be carried in your pocket or wallet anytime, anywhere. It is very...
SaleBestseller No. 16
BACtrack C8 Breathalyzer | Professional-Grade Accuracy | Optional Wireless Smartphone Connectivity |...
  • ESTIMATE YOUR ALCOHOL LEVEL WITH PRO-GRADE ACCURACY - Powered by BACtrack's patented BluFire Fuel Cell Sensor, the C8 utilizes the same...
  • KNOW WHEN YOUR BAC WILL RETURN TO 0.00% - BACtrack's innovative ZeroLine technology estimates the time until your BAC is 0.00%, allowing you to...
  • CALL AN UBER - Remember, the only safe time to drive is when your BACtrack shows 0.00%. Anything above that? You can call an Uber directly from the...
  • OPTIONAL WIRELESS CONNECTIVITY - Use the BACtrack C8 with or without your smartphone. "Standalone Mode" delivers your BAC results directly to your C8....
  • ONE YEAR WARRANTY - If your BACtrack C8 ceases to function properly during the first year of operation, we will repair or replace the defective...
Bestseller No. 17
Breathalyzer,2022 Upgrade Professional-Grade Accuracy Alcohol Tester with Digital Blue LCD Display...
  • 📟Easy to operate: insert only two AA batteries (product does not contain batteries), click the power button to start, then click the middle button...
  • 🎁Portable: The product is only 60g and can easily be carried in your purse or pocket. Ideal for weddings, parties, banquets or other social events...
  • 🍻Affordable, but reliable and accurate: The breathalyser uses a high precision semiconductor alcohol sensor and can be used extensively to test...
  • ⌛Comes with 10 replaceable mouthpieces: The breathalyser comes with 10 replaceable mouthpieces; the mouthpieces are made of edible PP and are...
  • ⚠Sound Warning: When the test result is higher than 0.050% BAC or 0.500‰ BAC, it will sound a "di di di... " alarm sound to alert you. The...
Bestseller No. 18
Portable Breathalyzer to Test Alcohol, Professional Digital Alcohol Tester with 12 Mouthpieces, Blue...
  • 【Sensitivity & High Precision】: With its high-precision semiconductor alcohol sensor, the alcohol tester breathalyzer will give you accurate...
  • 【Automatic Alarm Function】: The “Caution” symbol is displayed if the alcohol concentration is between 0.02% BAC(or 0.2g/l) and 0.05% BAC(or...
  • 【Easy To Read LCD Display】: With the LCD display, it is easy to read even in less than optimal light conditions and show how drunk you are.
  • 【12 Easy to Wear Mouthpieces Included】: The portable breathalyzer alcohol tester comes with 12 individual mouthpieces. The mouthpieces can be...
  • 【Easy to Use】: Just keep pressing the power button for 3 seconds to start the breath alcohol tester. Wait for 10 seconds for preheating and then...
Bestseller No. 19
Breathalyzer, Professional-Grade Accuracy Breathalyzer to Test Alcohol, 5 Mouthpieces | LED Display...
  • [ High Accuracy Breath Alcohol Tester ] - This alcohol breathalyzer adopted a high-precision semiconductor alcohol sensor, can real-time response and...
  • [ Energy-Saving and Auto-off ] - Powered by 2 x AAA batteries( not included, but commonly available), this breathalyzer will automatically shut off to...
  • [ Easy to Use ] - Warm up for 10 seconds and blow into the breath inhaler for 3-5 seconds, then read the text result from the alcohol tester LCD...
  • [ Portable Designed Breathalyzer ] - Space-saving, lightweight, portable, easy to hold and carry, can put it on your bag or pocket, stay with your...
  • [ 5 Mouthpieces for Replace ] - Comes with 5 replaceable mouthpieces, maintain health and hygiene alcohol test; And the 5 mouthpieces can be cleaned...
Bestseller No. 20
ZBK Breathalyzer Rechargeable | Professional-Grade Accuracy | Portable Breath Alcohol Tester for...
  • High sensor for accurately test —  The breath alcohol tester also provides you a reliable and stable result within 1.76% deviations every time when...
  • THE MOST ACCURATE BREATHALYZER AVAILABLE - In your efforts to drive more responsibly you need the most accurate results. While some breath testers...
  • PRACTICAL & EASY TO USE - Blow for 3-5 seconds and your BAC results are displayed 10 seconds later on a bright, easy to read LCD screen. Alcohol...
  • a portable alcohol tester designed to , A professional alcohol tester,from roadside law enforcement to hospital and treatment professionals....
  • ONE YEAR WARRANTY - Designed to read thousands of times with accurate results every time. When used correctly, testing 13 minutes after eating or...

Having trouble finding a great cheap breathalyzer?

This problem is well understood by us because we have gone through the entire cheap breathalyzer research process ourselves, which is why we have put together a comprehensive list of the best cheap breathalyzers available in the market today.

After hours of searching and using all the models on the market, we have found the best cheap breathalyzer for 2023. See our ranking below!

How Do You Buy The Best Cheap Breathalyzer?

Do you get stressed out thinking about shopping for a great cheap breathalyzer? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching cheap breathalyzer, which is why we have assembled a comprehensive list of the greatest cheap breathalyzer available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for cheap breathalyzer that you consider buying. Your questions might include the following:

  • Is it worth buying an cheap breathalyzer?
  • What benefits are there with buying an cheap breathalyzer?
  • What factors deserve consideration when shopping for an effective cheap breathalyzer?
  • Why is it crucial to invest in any cheap breathalyzer, much less the best one?
  • Which cheap breathalyzer are good in the current market?
  • Where can you find information like this about cheap breathalyzer?

We’re convinced that you likely have far more questions than just these regarding cheap breathalyzer, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for cheap breathalyzer, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible cheap breathalyzer. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an cheap breathalyzer buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available cheap breathalyzer currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of cheap breathalyzer has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an cheap breathalyzer?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your cheap breathalyzer.
  5. Customer Ratings: Number ratings grade cheap breathalyzer objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their cheap breathalyzer.
  7. Product Quality: You don’t always get what you pay for with an cheap breathalyzer, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an cheap breathalyzer is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining cheap breathalyzer information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding cheap breathalyzer is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: What is the best breathalyzer?

A: CMI,Inc. Lifeloc Intoximeters DA Tech Co.,Ltd Hound Labs Alcovisor ACS Corp. MEDICAL SENSORS INDIA PVT. LTD Drager Donglian Zhitong

Q: How long can a breathalyzer detect alcohol on your breath?

A: The following is an estimated range of times, or detection windows, during which alcohol can be detected by various testing methods. Alcohol can be detected in your breath via a breathalyzer test for up to 24 hours. How long after drinking can you pass a breathalyzer test?

Q: Can You scientifically beat a breathalyzer test?

A: Can You Scientifically Beat a Breathalyzer Test? 2019-11-25 · Although it sounds good in theory, in practice your burp will give you a similar or even higher Breathalyzer test result than simply breathing into the device. Holding your breath. If you hold your breath you allow more time for alcohol to diffuse into your lungs, increasing the …

Q: What can cause a false breathalyzer result?

A: Equipment Calibration. Like other technology,breathalyzers must be calibrated frequently to ensure they are working properly. Medical Conditions. Medical conditions and medications that create acid in the stomach and esophagus could result in a false positive breathalyzer. Time of Test. … Contamination. …