10 Best Expert-Approved Breathalyzers For Personal Use & Buying Guide, 2024

Keep these advanced tools handy at parties to detect the alcohol level in your body.

Medically reviewed by Dr. Benjamin Gibson, PAHM, PharmD, Certified Functional Specialist Dr. Benjamin Gibson Dr. Benjamin GibsonPAHM, PharmD, Certified Functional Specialist linkedin_icon
Written by , MA (English) Pratyasha Ray MA (English) Experience: 2 years
Edited by , Integrated MA Medha Deb Integrated MA Experience: 5 years
Fact-checked by , MA (English Literature), Diploma In Health & Wellness Aditi Naskar MA (English Literature), Diploma In Health & Wellness Experience: 5 years
All products recommended on StyleCraze are independently selected by our editorial team. If you make a purchase through any of these links, we may receive a commission. Learn more about our product selection process.

Family celebrations, weekend getaways, and late-night parties can be tempting, and you may feel the urge to go for a few extra drinks. Such situations call for you to keep the best breathalyzer handy. It will help you monitor blood alcohol levels in your body by determining the quantity of alcohol in your system. In addition, it can detect whether you are legally eligible to drive or not. If your alcohol consumption has gone beyond control, then you might put yourself and other road users in great danger. So, purchasing a personal breathalyzer is the responsible thing to do if you often drink outside. Here, we have listed the 10 best breathalyzers that are available online. Read on to know more.

Top PicksCheck Price
Best One-Touch Operation:Bactrack S80 Professional Breathalyzer
Price on Amazon
Best For Android And Ios:Bactrack Mobile Smartphone Breathalyzer
Price on Amazon
Best For Quick Results:Pro-Tec Electrochemical Breathalyzer
Price on Amazon
Best Portable:AlcoHAWK Elite Slim Digital Breathalyzer
Price on Amazon
Best Sturdy Design:Oasser Digital Breathalyzer
Price on Amazon
Best Long-Lasting:Jastek Digital Display Alcohol Concentration Test Meter
Price on Amazon
Best Accurate:Dräger Alcotest 3820 Breathalyzer
Price on Amazon

What Is A Breathalyzer?

A breathalyzer is a device used for estimating the blood alcohol level (BAL) from a breath sample. This alcohol tester is equipped with sensors that measure the subject’s BAL and provide accurate readings.

The device has a tube-like structure, which you breathe into, and a chamber for the electrochemical process. Here, the alcohol is oxidized, and an electrical current is produced. This detects the concentration of alcohol in your system.

There are three main types of breathalyzers available. Take a look. 

Types Of Breathalyzers

1. Semiconductor Oxide-Based Testers

These are relatively new, affordable, and simple devices. They use ethanol sensors to measure the subject’s blood alcohol concentration. The devices are equipped with a semiconductor that reacts with alcohol and changes the electrochemical current. The larger the change, the larger the alcohol content. These devices are for personal, home, or non-professional testing.

2. Fuel Cell Sensors

These are professional breathalyzers that provide accurate readings. Most officers use a fuel cell breathalyzer for roadside screenings. This device measures alcohol content by creating an electrochemical reaction that oxidizes alcohol and produces an electrical current. The greater the current, the higher the alcohol content. The current is then measured to determine the BAC readings.

Fuel cell sensors are made with expensive materials like platinum electrodes that help oxidize the alcohol to produce protons and electrons.

3. Infrared Spectrometer

These are used in table-top breathalyzers by traffic officials or at police stations. They identify the molecules within the sample of air and measure the amount of infrared light absorbed by them. Since ethanol can only absorb a certain wavelength of infrared radiation, the more the wavelength absorbed, the more the alcohol content. These devices provide 1005 accurate BAC readings.

Now that we know the types let’s take a look at the top 10 breathalyzers you can buy. 

Top 10 Breathalyzers To Buy In 2024

1. Best One-Touch Operation:Backtrack S80 Professional Breathalyzer

BACtrack S80 Breathalyzer Image: Bactrack

This breathalyzer is designed to meet the standards of accurate alcohol screeners. It is approved by the DOT and FDA. It is equipped with fuel cell sensor technology that provides almost accurate results and professional-grade reading. It delivers precise results over a range of alcohol concentrations from 0.000 to 0.400% BAC. According to reviews online, the best part about this personal breath device is that it excels even after multiple uses per day.

Batteries: 2 AA batteries required | Product Dimensions: 2.3 x 0.8 x 4.8 inches | Weight: 5.6 Ounces


  • One-touch operation
  • Reliable and accurate results
  • Comes in a case
  • Delivers results within 10 seconds
  • Legally approved


  • None
Our Tester's Experience

"This breathalyzer provides me with accurate results. It features an LCD screen, which I find easy to read. The device is sturdy and consistent. I like that it has a long battery life, and I can use it for days at a stretch. It comes with six reusable mouthpieces for maintaining hygiene."


Why We Think It's Worth Buying

It has received over 5,641 rave reviews on Amazon, proving it is a mass favorite.

2. Best For Android And Ios:Backtrack Mobile Smartphone Breathalyzer

BACtrack Mobile Smartphone Breathalyzer Image: Bactrack

This modern and new age breathalyzer is equipped with zero-line technology that enables you to detect the time until your BAC is 0.00% so that you are in control of your alcohol consumption. It can even deliver your BAC data to your phone via Bluetooth. The free BACtrack app tracks your BAC results and helps you call an Uber. The app will accurately let you know how close you are to the maximum BAC. You may check this in-depth review video for a better understanding of this product.

Batteries: 1 Lithium Ion batteries required | Product Dimensions: 1.75 x 0.63 x 2.75 inches | Weight: 2 Ounces


  • User-friendly
  • Sleek and compact design
  • Bluetooth connectivity
  • Lightweight
  • Suitable for Android and iOS
  • Reliable results


  • None
Our Tester's Experience

"This breathalyzer is compatible with my phone. I keep it connected to my phone and update my alcohol readings. The device provides accurate readings at all times. I find it easy to use. It has a long battery life as well."


Why We Think It's Worth Buying

Almost 1,211 happy users have mentioned the value and quality of this product.

3. Best For Quick Results:Pro-Tec Electrochemical Breathalyzer

The device is designed with professional-grade fuel cell sensor technology for 100% reliable, accurate, and consistent results. The new blowing interruption detection feature helps ensure the consistency of breath sampling. It is equipped with the latest technology and designed to offer a high-quality user experience. This device can detect the alcohol concentration range from 0.000% to 0.200%.

Product Dimensions: 2.75 x 1 x 5 inches | Weight: 4.96 Ounces


  • Comes with a case
  • Easy to carry
  • Delivers results in seconds
  • Recalibration alarm
  • 5 replacement mouthpieces included


  • Poor battery

Our Tester's Experience

"I love how quickly this device detects the alcohol level in my body. It features a memory button, which I use to check my early records. The device is sturdy, and it has a simple, black body. It comes with a carrying case, which comes in handy."

protip_icon Remember
Wait for at least 20 minutes post-drinking before using the breathalyzer to get the correct result.

Backtrack S80 Professional Breathalyzer
Best One-Touch Operation
Backtrack Mobile Smartphone Breathalyzer
Best For Android And Ios
Pro-Tec Electrochemical Breathalyzer
Best For Quick Results
Batteries 2 AA batteries required 1 Lithium Ion batteries required -
Dimensions 2.3 x 0.8 x 4.8 inches 1.75 x 0.63 x 2.75 inches 6 x 3.9 x 0.5 inches
Weight 5.6 Ounces 2 Ounces-
Weight-- 0.35 Pounds
Skin Type-- Dry
Material-- Spandex, Polycotton

4. Best Portable:AlcoHAWK Elite Slim Digital Breathalyzer

AlcoHawk Elite Slim Digital Breathalyzer is a semiconductor breathalyzer. It is a pre-calibrated device with professional-grade testing. It meets the DOT standards of BAC testing. This portable breath alcohol tester comes with specially designed mouthpieces that prevent the outside environment from disturbing the sample. It has a built-in exhale monitor that helps prevent the sample from diluting. It also ensures to capture air from deep in the lungs for accurate readings.

Product Dimensions: 2.75 x 1 x 5 inches | Weight: 4.96 Ounces


  • Portable
  • Includes mouthpiece covers
  • Easy to use for beginners
  • Fast results
  • Accurate readings


  • Requires multiple resettings

5. Best Sturdy Design:Oasser Digital Breathalyzer

This light and portable breathalyzer features advanced semiconductor sensor technology that ensures to provide results within seconds. It comes with four breathalyzer mouthpieces and three AAA batteries. The wide testing range displays the result from 0.01 to 0.2% BAC. Additionally, the device alarms you with a beep sound and a red light when the BAC is higher than 0.08%. This video review will help you learn more about the product through a tester’s experience of using it.

Batteries: 3 AAA batteries required


  • Compact and sturdy design
  • Improved accuracy in different BAC levels
  • Large LCD screen
  • 4 removable mouthpieces included


  • Requires regular calibration

Our Tester's Experience

"The breathalyzer does its job well when used properly. It has a durable design and is easy to use. It is fairly accurate with its readings with the press of a button."

6. Best Long-Lasting:Jastek Digital Display Alcohol Concentration Test Meter

This breathalyzer can detect up to 0.190% BAC. It stores up to 32 recent testing records. With 6 different testing modes, the results are displayed within 3 seconds. It displays a red light when the test result is higher than 0.05% BAC. The device is powered with three AAA long-lasting alkaline batteries.

Product Dimensions: 1.9 x 4.7 x 0.9 inches | Weight: 4.8 Ounces


  • Portable
  • Includes 5 removable mouthpieces
  • User-friendly
  • Easy to read LED display
  • High-precision test results


  • Needs regular recalibration

Our Tester's Experience

"This breathalyzer has been quite handy for measuring alcohol levels. It has a compact size that is perfect for on-the-go uses. It fits easily into a purse and a carry bag. It is very easy to use and comes with multiple mouthpieces."

protip_icon Quick Tip
Use a mild disinfectant and a soft cloth to remove dust and stain from the outside of the breathalyzer.

7. Best Accurate:Dräger Alcotest 3820 Breathalyzer

Drager Alcotest 3820 Breathalyzer Image: Drager Safety Ag & Co. Kgaa

This award-winning breathalyzer is a one-button operation device. It features optional audible feedback, text, and graphic readings on the LCD. It also has an integrated clock that reminds you to send your device for calibration. This accurate device meets the strong requirements of NHTSA’S standard readings. It works incomparably fast and accurately. Within 4 seconds, it can be used to detect the BAC again.

Batteries: 1 CR123A batteries required | Product Dimensions: 5.2 x 2 x 1.1 inches | Weight: 10.72 Ounces


  • Can store up to 10 test results
  • Long-lasting reading
  • Does not require calibration until a year


  • Expensive

Our Tester's Experience

"The quality of this breathalyzer is just spot on. It feels sturdy and durable. Surprisingly, it is compact enough to take along on trips or outings. The readings are quite precise."

8. Best User-Friendly:iSOBER30 Breathalyzer

iSOBER 30 Breathalyzer Image: Sentech Usa Inc

This user-friendly breathalyzer uses advanced fuel cell sensor technology. It can record up to 10 results along with time. The device also reminds you of the number of days remaining for calibration. It can read from 0.000 to 0.400% BAC. It comes with two 1.5V AAA batteries. The test results are accurate and 100% reliable.

Batteries: 2 AAA batteries required | Product Dimensions: 3.94 x 1.73 x 0.59 inches | Weight: 2.33 Ounces


  • Respond within 10 seconds
  • Lightweight and portable
  • Durable battery life
  • Affordable


  • Slightly expensive

Our Tester's Experience

"This breathalyzer is a practical safety tool that provides accurate results. It is compact and easy to use. It can even slip into a pocket or purse. It is also quite durable."

9. Best Sleek Design:Mq Care Digital Breathalyzer

This breathalyzer’s one-touch operation features advanced semiconductor sensor technology that gives you accurate and reliable results within seconds. The device emits an alarming sound with blinking lights to indicate over-the-limit BAC. It has three mouthpieces that can be cleaned and re-used. The device is light and of portable size to carry in your pocket.

Item Weight: ‎1.1 pounds


  • Sleek design
  • Advanced functionality
  • Large LED screen
  • affordable


  • Needs regular calibration

protip_icon Did You Know?
Rolla N. Harger developed the first stable breathalyzer in 1931 and called it the drunkometer for out-of-lab use. Robert Frank Borkenstein developed the first version of the current breathalyzer model in 1958.

10. Best Pocket-Friendly:Rofeer Digital Breathalyzer

The Rofeer Digital Breathalyzer has six standard measurement units to choose from. You can record up to 32 measurement results on this breathalyzer. There are also three distinct sound and color alerts to warn you about the results. The LCD screen displays the results for 15 seconds. The compact design saves energy and space. The package also includes five washable mouthpieces.

Batteries: 3 AAA batteries required | Product Dimensions: 4.84 x 2.17 x 0.75 inches | Weight: 4.97 Ounces.


  • 5 washable mouthpieces
  • Pocket-friendly size
  • Affordable


  • Inconsistent results

Our Tester's Experience

"This product provides accurate results. It is affordable and gets the job done well. It is easy to use because the instructions are very clear. It seems durable as well."

*The prices provided in this article are based on the latest available information. However, they may vary due to changes in pricing by the seller and/or promotional offers.

Those were the top 10 breathalyzers available on the market. But how do you choose one? How do you know which one is right for you? 

What To Look For In A Breathalyzer

These are the key considerations that you need to keep in mind while buying a breathalyzer:

  • Accuracy

Before purchasing an alcohol breathalyzer, you should know that these devices are not 100% accurate, but some are very close. If you are looking for accurate readings, some breathalyzers have a level of accuracy with a marginal error of ±0.001. This is the maximum margin allowed by the law. However, some devices claim to be 100% accurate, which is not true.

  • Calibration

Whether you use the breathalyzer more than once a day or less than once every 2 to 3 months, you need to send your device for calibration. Though the need for frequent calibration is very less for personal use of a breathalyzer, it will be beneficial to send it away for calibration at least once a year.

  • Legally Approved

It is important that you choose a breathalyzer that is approved by the DOT, NHTSA, FDA, and other similar government bodies, depending on your country. This is so that these devices are accurate and match the police readings. 

  • Technology

Most accurate breathalyzers use fuel cell technology. Other devices with not-so-accurate functioning use semiconductor sensors. You may consult a health device analyst to determine which technology works the best for personal use.

  • Replaceable Mouthpiece

Look for a device that comes with a replaceable mouthpiece for accurate results. Some devices provide disposable mouthpieces for hygiene and accuracy purposes.

The Bottom Line

Uncontrolled drinking is dangerous for you and your peers, as well. Get these handy gadgets and stay sober and safe. Choose your pick by checking each of these product’s pros, cons, and additional features like rechargeable battery and one one-year warranty. For example, the Bactrack S80 Professional Breathalyzer is known for its reliable and accurate results, while the Bactrack Mobile Smartphone Breathalyzer is the best user-friendly option out there. Also, the Dräger Alcotest 3820 Breathalyzer provides fast results. Pick the product you think is best suited for you, try it out, and let us know how it worked for you by commenting below. Dr. Benjamin Gibson, a certified functional specialist with 15 years of experience, states, “If you are looking for a budget-friendly breathalyzer model, spend $25 on the sturdiest. If one is on the ketogenic diet then one should consider buying an infrared spectrum breathalyzer.”

Frequently Asked Questions

How accurate are breathalyzers?

High-quality breathalyzers have only 0.001% chance of error. They accurately determine the amount of alcohol concentration in your system.

What is a normal breathalyzer reading?

A reading of 0.05% BAC or less is a standard breathalyzer reading. It is a legal alcohol limit to drive.

Can drinking water help you pass a breathalyzer?

No. Drinking water or hyperventilation does not impact the alcohol level in your system.

How long do you have to breathe in a breathalyzer?

Breathe in a breathalyzer for approximately four to five seconds to record the BAC level.

Does smoking affect a breathalyzer test?

Yes. A smoker contains more acetaldehyde in their system that reflects on a breathalyzer test, even if the person has not consumed alcohol.

Can coffee set off a breathalyzer?

No. Coffee does not increase the BAC level in your system. It does not affect alcohol concentration.

Can a breathalyzer detect Coke?

No. Breathalyzers can not detect the presence of coke in your system.

Why Trust StyleCraze?

The author has compiled a list of the best breathalyzers after carefully considering several online reviews and general feedback from worldwide users. Each product has also been closely reviewed, keeping in mind factors such as accuracy, calibration, and legal approval. These health devices prove extremely handy in monitoring blood alcohol levels that determine if you are fit enough to get behind the wheels.

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Dr. Benjamin Gibson

Dr. Benjamin GibsonPAHM, PharmD, Certified Functional Specialist

Dr. Benjamin Gibson is an award-winning multi-state licensed pharmacist and nutritionist published on PubMed. He is also a best-selling author, international podcast host, international newspaper reporter, and health coach. He has 15 years of experience and a bachelor’s degree in biomedical engineering and a doctorate in pharmacy. Dr. Gibson helps clients sleep better, lose weight, and get stronger bones without...read full bio

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