Personal Breathalyzer

Have you ever wondered how alcohol affects your body? It isn’t just affecting your pocket, but you must see what it’s doing to your nervous system, including your memory. In the past, these breath-testing devices were extremely expensive and not very easy to use. But over the last few years, more and more people start using them. The truth is that they have become smaller, cheaper and more accurate. Plus, they are more widely available for sale. However, fewer drivers are in a hurry to get a breathalyzer. With so many models available on the market, it could be quite difficult to make the right decision. Therefore, in order to help you decide what to choose, we have gathered some of the most accurate and reliable breathalyzers available in stores. Take a look at our comparison table and choose the one that meets your requirements.

Top 5 Personal Breathalyzers Comparison


  1. BACtrack S80 2. AlcoMate Premium AL7000 3. BACtrack Mobile Smartphone 4. BACtrack C6 Keychain 5. Oasser Alcohol Tester
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Dimensions (in.) 2.3 x 4.8 x 0.8 inches 4.25 x 2.0 x 0.75 inches 1.75 x 2.75 x 0.63 inches 2.21 x1.875 x 0.66 inches 4.3 x 0.8 x 2.4 inches
Weight (oz.) 4.8 1.00 1.17 2.0 2.25
Color Black Gray&Black White&Black White&Black Black

Technical Details

Battery Type 2 AA batteries included 2 Standard 1.5V AA included Rechargeable with included micro USB cable 1 AAA battery 3 AAA batteries included
Battery Life 1500 tests 300 tests N/A N/A N/A
Ideal Use Personal&Professional Commercial, Corporate, Industrial, Law Enforcement, Medical, Military, Pro-consumers Personal&Professional Personal Personal&Professional
Accuracy Rating 10- most accurate 9- extremely accurate 10- most accurate 8- very accurate 9- extremely accurate
Sensor Type Platinum Fuel Cell Oxide Semiconductor Platinum Fuel Cell Platinum Fuel Cell Semiconductor
Sensor Accuracy +/- 0.005 at 0.050% BAC +/-0.01 at 0.10 g/dL +/- 0.005 at 0.050% BAC +/- 0.005 at 0.050% BAC +/-0.01 at 0.10 g/dL
Warm-up Time 10-20 seconds 20 seconds 10 seconds 10 seconds 20 seconds
Blowing Time 5 seconds 5.5 seconds 5 seconds 5 seconds 5 seconds
Response Time 3 seconds 3 seconds 2 seconds 2 seconds 3 seconds
BAC Range 0.000 – 0.500% BAC 0.000 – 0.400% BAC 0.000 – 0.400% BAC 0.000 – 0.400% BAC 0.01-0.2% BAC


Display 4-digit LCD display 4-digit LCD display OLED screen LCD display
Number of Mouthpieces 6 5 3 3 4
Bluetooth Connectivity
Xtend Electro-chemical fuel cell Sensor Technology PRISM Technology Xtend Electro-chemical fuel cell Sensor Technology Advanced BluFire Electro-chemical fuel cell Sensor Technology Advanced Semi-conductor Sensor Technology
Effective Breath Capture BREATHCHECK ERROR Technology Internal Breath Pump ZeroLine Technology Smart Alarm
One-Touch Operation Audible Function ZeroLine Technology BACtrack Companion App One-Touch Operation
BACtrack Companion App


Warranty 1-Year Warranty 1-Year Warranty 1-Year Warranty 1-Year Warranty 1-Year Warranty
User Manual
Customer Support
Online Support

1. BACtrack S80

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After 1 week of researching, analyzing and reviewing more than 50 types of breathalyzers, we finally conclude that the BACtrack S80 is the most accurate model out there. It comes with a compact design and gives fast and accurate alcohol content readings from 0.000 to 0.500 %(BAC). We selected this one as the best on the market because it uses police-grade sensor technology which makes it similar to the previous tests, the ones that only the police officers could use. However, if you are thinking about purchasing this breath-testing device, there are several things to consider before making a purchase.

First of all, it is important to know that it features a platinum fuel cell sensor. It runs on 2 AA batteries instead of AAA that provides approximately 1500 tests. More than that, it uses an advanced technology, the Xtend Fuell Cell Sensor technology thanks to which, it is able to deliver fast and accurate readings. In addition to this, it comes equipped with a 4-digit LCD display that allows you to read easily the accurate results. All the results are provided in extended accuracy format. The reason why we choose to focus on this model is that it is very easy to use and operate. In spite of its multiple features, it is extremely easy to use. Due to the one-button operation feature, the readings will be displayed in less than 10 seconds. You just have to press power and begin operating. It is also worth mentioning about its continuous temperature checking and internal pump system for breath capture.

  • Xtended Fuel Cell Sensor Technology
  • The best high accuracy breathalyzer
  • 4-digit LCD display
  • One-button operation
  • Continuous temperature checking
  • Internal pump system for breath capture
  • High price

The BACtrack S80 is the best high accuracy breathalyzer. It uses an advanced technology and comes equipped with a plethora of impressive features. Of these, we will mention about the Xtend Fuel Cell Sensor Technology, one-button operation, internal pump system for breath capture as well as its 4-digit LCD that provides incredibly easy to read and accurate results.

2. AlcoMate Premium AL7000

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Another great option to go with is this model made by AlcoMate. It is an accurate breath-testing device that doesn’t need calibration. The AL7000 comes with a compact design and an ABS molding construction. It is durable and safe to use. More than that, like the above model, it comes with an advanced technology and plenty of features. It has an oxide semiconductor sensor and a 4-digit LCD display. The device runs on two 1.5V AA batteries and has a single-button operation. What we really like about this breathalyzer is the fact that you can count on it to serve all your all your personal and/or professional alcohol breath testing needs. You may wonder why? The answer is simple: it is DOT approved for law-enforcement grade accuracy and US Coast Guard. As mentioned above, it comes with an advanced technology: the PRISM technology. This is the solution to calibration. In simple terms, it eliminated two important elements of traditional re-calibration, such as the turnaround cycle and sensor degradation.

In what regards the design, we already mentioned that it comes with a compact design, however, keep in mind that it measures 4.0″ x 2.0″ x 0.8″ and weighs about 3.4 oz.. It is small, portable and fits easily into your pocket. We mentioned everything, but we didn’t say anything about its accuracy. This breath-testing device has an accuracy of +/-0.01 at 0.10 g/dL (%BAC) and a detention range within 0.000 – 0.400% BAC (G/DL). All in all, this great option should be considered by anyone in need of a quality breathalyzer.

  • Oxide Semiconductor Sensor
  • 4-digit LCD display
  • Easy to use: single button operation
  • PRISM technology: it eliminates the problems with re-calibration
  • 5 mouthpieces
  • Not as accurate as the first model

If you are looking to purchase an accurate yet affordable breath-testing device, the AlcoMate Premium AL7000 could be exactly what you need. With PRISM technology and plenty of other interesting features, it will provide you with fast and accurate blood alcohol content (BAC) readings. It is also worth mentioning that it comes with 5 mouthpieces for every member of your family.

3. BACtrack Mobile Smartphone

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Based on market popularity and available features, we are glad to introduce you our third option. The BACtrack Mobile Smartphone is one of the best breath-testing devices available in stores. It is an accurate breathalyzer that wirelessly delivers accurate blood alcohol content (BAC) readings to within 0.004% to your enabled Bluetooth devices. This BACtrack model measures 1.75 x 2.75 x 0.63 inches and weighs 1.7 oz. It is lightweight and portable. Unlike its competitors that come with multiple mouthpieces, this one has only 3 mouthpieces included. It runs on a rechargeable battery with included micro USB cable.

It comes with a lot of features. Of these, the most important are:

  • Xtend Fuel Cell Sensor Technology – Thanks to this, the device is extremely accurate. The technology provides the highest level of consistency and accuracy.
  • ZeroLine Technology – Advanced technology – It will estimate when your blood alcohol content will return to 0.00%.
  • Internal Breath Pump – This model is equipped with a mini solenoid breath pump for more efficient breath capture.

As compared to many of its competitors, this BACtrack breathalyzer is extremely easy to use. Just breath into the device and it will send the readings to your Android or iOS device. According to the manufacturer’s specifications, it is compatible with most Apple, Samsung, and Google devices. Overall, this is a great option to consider when making a purchase.

  • Xtend Fuel Cell Sensor Technology
  • It comes equipped with an internal breath pump
  • Bluetooth connectivity
  • ZeroLine Technology
  • Extremely accurate
  • It doesn’t have an LCD display
  • It only has 3 mouthpieces

Although it doesn’t come with an LCD display and it only has 3 mouthpieces, the BACtrack still is one of the most popular options on the market. It uses advanced technology and it is compatible with most iOS and Android devices. It is capable of delivering BAC readings to your smartphone via Bluetooth, letting you know if you are too drunk to drive.

4. BACtrack C6 Keychain

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Our 4th option is a quality breathalyzer that will estimate your alcohol level in seconds. The BACtrack C6 Keychain is an efficient device that runs on 1 AAA battery and comes with 3 mouthpieces for protection. They are made of hygienic plastic and can be removed, washed and reused. For increased accuracy and consistency, the device uses an advanced technology: BlueFire Fuel Cell Sensor Technology. It is the same technology used by hospitals and clinics. Furthermore, it has the ability to estimate the time until the blood alcohol content will return to 0.00%. Wait a couple of minutes and the device will provide you with the most accurate readings.

This breath-testing device also comes with some other features. Of these, you must know about its dual-mode operation and its easy-to-read OLED display. The readings are displayed on the display if you choose the Standalone Mode and wirelessly delivered to your smartphone if you choose the App Mode. It is easy to use operation that can be done in seconds. If none of this is enough to convince you to purchase the device, maybe the fact that it is ultra-portable will. The C6 Keychain breathalyzer measures 2.21 x1.875 x 0.66 inches and weighs 2.0 oz. It is one of the smallest breath-testing devices ever created. It is so small that you can attach it to your keys or even put in into your pocket. Overall, for this price tag, it clearly is a great deal.

  • High-level of accuracy
  • Dual-mode operation
  • The app is sleek and integration is flawless
  • Generous cooking surface
  • ZeroLine technology
  • According to several customers, it has some calibration issues
  • Several customers claim that its sensors go bag after a couple of years

Looking for an accurate breathalyzer with a sleek app and a nice design? Then, the BACtrack C6 Keychain may be exactly what you are looking for. Accurate, portable and very easy to use, this is one of those models that stands out from the crowd. It uses an advanced technology and comes with many features that will satisfy your needs and meet your requirements.

5. Oasser Breathalyzer Alcohol Tester

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If you are on a budget but you still need a breath-testing device that could help you avoid troubles with the police, this breathalyzer by Oasser is exactly what you need. In terms of accuracy and consistency, it is the best options for this tag price. It is a device that runs on three AAA batteries and provides accurate readings at withing +/-0.01 at 0.10 g/dL (%BAC). As compared to some of its competitors that are equipped with a platinum fuel cell sensor, this model comes with a semiconductor sensor and an auto power-off feature.

It has 4 mouthpieces that are washable and reusable. More than that, it allows you to see all those accurate readings on its bright LCD display with an easy-to-read background. At 4.3 x 0.8 x 2.4 inches and 2.25 oz., it is one of the smallest and most portable breathalyzers available for sale. The fact that it has an auto power-off feature is a major perk as it conserves its battery life.

  • It comes equipped with a semiconductor sensor
  • Great price
  • Smart alarm
  • 3 display values
  • Auto power-off feature
  • Not as accurate as its competitors
Overall, this breathalyzer is a nice option to consider. Maybe it lacks the advanced features of other similar devices, but it is affordable and very easy to use. It is a great accessory for casual drinkers, so if you are in this category, this should be in your vehicle.

6. AlcoHAWK Slim Digital Breathalyzer

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There are many models of breathalyzers you can buy for personal use, but the one by AlcoHAWK is one of the best out there. It is a compact device that provides fast and accurate blood alcohol content readings to within a range of 0.000 – 0.400%. Of all the models on the market, this one is among the best as it is capable of remembering all your previous tests and comes equipped with an electronic airflow sensor that provides a deep lung sample for testing.

In addition to this, it has a semiconductor sensor with a 2 digit display for precision. Due to its one-button operation and ruby red LED display, the detector is extremely easy to use. Aside from being efficient and very accurate, it also is lightweight and portable. It features a folding mouthpiece design that makes it portable and easy to carry. According to the manufacturer’s specifications, it is tested and cleared by the department of transportation DOT, so rest assured as it is a trusted device.

  • It provides accurate results
  • Small and portable
  • Removable mouthpieces covers
  • It meets DOT/NHTSA Breath Alcohol Screeners standards
  • Easy to use

At a very attractive price and with a 1-year warranty, we are proud to include on our list one of the most efficient and accurate alcohol detectors out there. The AlcoHAWK Slim Digital Breathalyzer provides accurate and fast results. All in all, it is a nice option to consider when making a purchase.

7. GDbow

According to several U.S. studies and statistics, more than 200.000 people were arrested in 2010 for driving under the influence of alcohol. A breathalyzer is that tool that every driver should own. Over the last few years, it has gained popularity because of its lack of side effects. Most models are small, portable and easy to hold in your pocket. With this in mind, we have included on our list a portable alcohol tester that can definitely become your drinking buddy. The GDbow breathalyzer is a compact alcohol tester that provides fast and accurate BAC readings to within 0.001%. It is equipped with a lot of features, including auto-calibration and sensor fault self-checking system. It is capable of recording up to 32 testing results and comes with 5 hygienic plastic mouthpieces.

The breathalyzer is very easy to use. Just press the button for 2 seconds and wait for warming up. After that, blow into the device for 5 seconds and wait for the readings which will appear after 3 seconds. The results will be displayed on the LCD screen. The device comes with a large and easy to read display so you don’t need to worry about this aspect. The device is powered by 3AAA alkaline batteries that will last for up to 200 tests. The breathalyzer is available for sale at a great price. Plus, it comes with a 12-month warranty. However, if you have any issues with the device and you need more detailed information, feel free to contact the customer service department or visit the manufacturer’s official website.

  • Auto-calibration
  • Sensor fault self-checking system
  • 5 Removable mouthpieces covers
  • Capable of recording up to 32 readings
  • 6 different testing modes

Looking for a good quality alcohol tester? Then, take a look at this portable device and you will be surprised to discover how accurate it is. Plus, it provides results in just 5 seconds after 20 seconds of warming up. Overall, the breathalyzer by GDbow is a good option to consider when making such a purchase.

The Most Relevant Aspects to Consider

The market is flooded with so many different types and models of breath-testing devices, that finding the best one in stores could be a backbreaking task. Therefore, when making a purchase, you should pay attention to several aspects that differentiate quality breathalyzers from the poor-quality models. In order to help you decide what to choose, we have gathered some of the most important factors to consider.

DOT/NHTSA APPROVED & FDA 510(k) CLEARED – The BACtrack S80 was designed to meet the rigorous standards of expert alcohol screeners, from roadside law enforcement to hospital and treatment professionals. Designated by the U.S. Dept. of Transportation & National Highway Traffic Safety Administration as an approved breath alcohol screening device, the S80 has also been cleared by the FDA for personal use, making it the top choice of safety-conscious individuals as a portable home breathalyzer.

Important Features Their Characteristics Best Option
Accuracy Since breath-testing devices are the most popular way to test for blood alcohol content (BAC), it is very important to know how accurate they really are. The most advanced models provide accurate estimates of BAC. Their accuracy is typically based on the size and type of sensor. According to several experts, a quality device should maintain the accuracy rating with a margin of error of at least +/- .01% at 0.08% BAC. Also, they have to be approved and certified by DOT as qualifying for alcohol screening. BACtrack S80, BACtrack Mobile Smartphone, BACtrack C6 Keychain
Xtend Fuel Cell Sensor Technology

Breath-testing devices with fuel cell sensors are extremely accurate. They are made with the same technology that is used by law enforcement for roadside alcohol testing. These types of devices have become affordable and their price has come down. For this reason, they have become more popular. They are designed to deliver the most precise measurement of your blood alcohol count.

BACtrack S80, BACtrack Mobile Smartphone
DOT/NHTSA approved Currently, you can find breathalyzers that were designed to meet strict standards of law enforcement specialists. Manufactured by the U.S. Dept. of Transportation & National Highway Traffic Safety Administration, some models were also been approved by the FDA for personal use. And so it becomes an approved breath alcohol screening device an important option for safety-conscious people. BACtrack S80, AlcoMate Premium AL7000
Number of Mouthpieces While most models are equipped with 3 mouthpieces, there are also some models that come with multiple plastic pieces. Most of them are made of hygienic plastic. They are washable, reusable and easily removable. They are made for friends and family who want to use the same breathalyzer. It is advisable to change the mouthpieces for hygienic reasons.

BACtrack S80, AlcoMate Premium AL7000, Oasser Alcohol Tester

The calibration of a breath-testing device isn’t a complicated process but it should be done by an engineer. The softer inside the device should be properly adjusted in order to take accurate BAC readings. In order to ensure great performance and excellent results, all breath-testing devices must be calibrated periodically. However, there some of the most advanced models do not require periodic calibration.

BACtrack S80, BACtrack Mobile Smartphone, BACtrack C6 Keychain

Frequently Asked Questions

1What is the difference between a professional and a personal breath-testing device?
The professional breathalyzers are more accurate and provide more benefits than the personal models. However, both models are designed to meet the standards of FDA 510(k) cleared devices.

2If you are under treatment from a doctor, does the medication affects the results of the test?
The most advanced models will not show a false positive for someone who is under medical treatment. Sometimes, the semiconductor models could show a false positive result.
3What is %BAC?
The BAC is an abreviation for Blood Alcohol Content or Blood Alcohol concentration. It represents the concentration of alcohol in your blood.

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