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BACtrack S75 Pro Breathalyzer Professional Edition
Code: BT-S75
Regular price: $199.95
Sale price with FREE SHIPPING: $129.99
Availability: Usually ships the same business day

Click Here to View Owner's Manual
Click Here to See the BACtrack S75 Pro in the Press



CURRENTLY OUT OF STOCK, but we should have more available in the next 24-48 hours. Thank you for your patience!

The BACtrack® S75 Pro is one of the most affordable BACtrack fuel-cell models available!

"The accuracy of this hand held device is amazing given its size and less than $150 price tag. --Andrew Weiner, Technology Writer, Examiner.com

The BACtrack S75 Pro is a stunning combination of accuracy, affordability, and style. The S75 Pro has been designed to reduce unnecessary size and weight, while maintaining all the accuracy benefits of a full-sized fuel-cell-based breathalyzer. And because it is priced at a groundbreaking $129.95 and has obtained FDA 510(k) clearance, this professional technology is now directly available for both consumer and professional use.

Style and Comfort

It is obvious that the S75 Pro has been designed for maximum comfort and ease of use during testing. The generous use of sleek, rounded edges on the back side allows the product to effortlessly fit into the palm of the hand. This eliminates the potential for accidental drops, and also makes it easier to press the Start and Mode buttons during testing.

Front-facing Mouthpiece

The front-facing mouthpiece has numerous advantages over older breathalyzer configurations. First, the front-facing mouthpiece has been designed to make self-testing incredibly easy. There is no reason to rotate, twist, or turn the product after the initial countdown. Instead, a user can watch the screen and simply move the product forward towards the mouth when the countdown reaches zero. This helps eliminate flow errors – where a user does not blow quickly enough after the countdown. When a user has completed the breath sample, again, there is no twisting or turning needed – the result is already directly on the screen in front of them. This ease-of-use is very noticeable the first time you use the S75 Pro.

NEW! Read Frequently Asked Questions about the BACtrack S75 Pro including:

  • Who uses the S75 Pro?
  • What are the differences between the BACtrack S80 Pro, the S75 Pro and the BACtrack Element?
  • Why is the S75 Pro's fuel cell sensor technology important?
  • Why should I spend $129 on the S75 Pro?


    The S75 Pro’s Xtend sensor technology is unlike any other available, and is worth the upgrade. Don’t purchase a novelty breathalyzer that may not provide trusted results. Go with what the Pros use. The BACtrack S75 has been tested by the DOT/NHTSA and meets their requirements for a breath alcohol screening device. The S75 Pro is also FDA 510(k) cleared for personal use.

    Professional Accuracy

    The BACtrack S75 Pro employs highly-accurate Xtend™ fuel cell sensor technology, which allows it to be used for professional and medical testing applications. When accuracy is key, count on the S75 Pro’s Xtend Fuel Cell Sensor technology for the following benefits:

    • It will not show a false positive for someone who is diabetic or on a low calorie diet. Other semiconductor breathalyzer models will sometimes show a false positive result for these individuals.


    • It provides more accurate and more consistent results as compared with semi-conductor models. For example, with the S75 Pro, you are more likely to show the same test result when you test someone repeatedly in a very short period of time.


    • It can remain accurate for up to thousands of tests.


    • It is more accurate at higher BAC concentrations. For example, if someone is very intoxicated, say 0.22 %BAC, the S75 Pro is more likely to provide an accurate test result as compared to semiconductor models, which often lose accuracy at higher BAC values. This is called linearity of response.


    Like the BACtrack S80 Pro, the S75 Pro also uses a miniature air pump inside the product to more accurately collect a breath sample. During use, you can actually feel the "click" of the pump collecting the breath sample.


    The BACtrack S75 Pro Kit Includes

    S75 Pro Breathalyzer
    Soft Carrying Pouch
    6 Mouthpieces
    2 AA Batteries
    Owner's Manual
    Full One Year Warranty


    The replaceable mouthpieces easily attach to the breath intake port. Simply insert a mouthpiece and begin testing. Mouthpieces can be reused or replaced after each test.

    Additional Product Details

    Dimensions 2.3 x 4.8 x 1.0 inches
    Weight 4.4 oz (125g) with mouthpiece and batteries
    Mouthpieces 6 included
    Battery 2 AA batteries included
    Battery Life Approximately 1000 tests
    Sensor Xtend™ Electro-chemical fuel cell
    Warmup Time 10-20 Seconds
    Blowing Time 5 Seconds
    Response Time Within 10 Seconds
    BAC Range 0.000 - 0.400% BAC (Blood Alcohol Content)
    Air Sample 5 Seconds
    Sensor Accuracy +/- 0.005 at 0.100% B.A.C.
    Test Count Displays total number of tests performed
    Warranty 1 Year



    The BACtrack S75 Pro is equally suited for roadside and emergency screening, and also for serious personal use. Count on the BACtrack S75 Pro for trusted, reliable results.

    Purchase the BACtrack S75 Pro today and receive free USPS Priority Mail Shipping! The S75 Pro is in stock and normally ships the same business day. It is an excellent, price-conscious breathalyzer option for a wide variety of testing needs.

    You may be interested in adding the following items to your order:


  • Utilizing Xtend™ Sensor Technology, the BACtrack S75 Pro boasts greater accuracy than semiconductor-based sensors, which are subject to interference from acetone, a compound often found in individuals who have diabetes or who are on low-calorie diets. Xtend Sensor Technology also helps ensure increased accuracy at higher blood-alcohol concentrations.


    The replaceable mouthpieces easily attach to the breath intake port. Simply insert a mouthpiece and begin testing. Mouthpieces can be reused or replaced after each test.




    A key feature of the BACtrack S75 Pro is its miniature air pump, which is used to more precisely collect a breath sample.

    The S75 Pro uses a miniature air pump to more precisely collect a user's breath sample. During use, you can actually feel the "click" of the pump collecting the breath sample.


    I enthusiastically support BACtrack Breathalyzers and their mission to get a breathalyzer in the hands of everyone. I know lives and families can be saved through the use of personal breathalyzers.

    -Dr. Phil McGraw, host, Dr. Phil











    BACtrack Select Series Mouthpieces - Pack of 50
    BACtrack Select Series Mouthpieces - Pack of 100
    BACtrack Select Series Mouthpieces - Pack of 50

    Regular price: $39.99
    Sale price with FREE SHIPPING: $29.99
    BACtrack Select Series Mouthpieces - Pack of 100

    Regular price: $79.99
    Sale price with FREE SHIPPING: $44.95