BACtrack Professional Series breathalyzers with police-grade Xtend™ Fuel Cell Sensor Technology offer the highest level of accuracy and consistency. They’re ideal for applications that demand the most accurate results, such as clinical or roadside alcohol testing or personal BAC monitoring. Xtend technology accurately measures higher BAC levels, produces consistent results in repeated tests, and maintains accuracy for up to 1,500 tests. Our professional line includes the BACtrack S80 Pro, BACtrack S75 Pro, and BACtrack Element.

BACtrack Professional Series models all employ proprietary Xtend Fuel Cell Sensor Technology, which provides precise results over the complete range of alcohol concentrations expected in the breath, from 0.000 to 0.400 %BAC. The Professional Series also offers extended sensor life, delivering long-term reliability.
These models provides four-digit test results in an extended accuracy format: 0.015, 0.081, 0.223 %BAC, etc. They can pick up trace amounts of alcohol – for example, 0.002 %BAC – which is helpful in zero-tolerance environments.
See how the three BACtrack Professional products compare.
| Model | S80 Pro![]() |
S75 Pro![]() |
Element![]() |
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|---|---|---|---|---|
| Price | Our Price: $149.99 Retail Price: $249.99 |
Our Price: $129.99 Retail Price: $199.99 |
Our Price: $129.99 Retail Price: $169.99 |
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| Sensor | Xtend™ ElectroChemical Fuel Cell Sensor |
Xtend™ ElectroChemical Fuel Cell Sensor |
Xtend™ ElectroChemical Fuel Cell Sensor |
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| Sensor Size |
Larger | Medium |
Smaller |
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| Features | The most accurate fuel cell sensor breathalyzer from BACtrack. Police-grade fuel cell sensor with internal pump system. |
Police-grade fuel cell sensor with internal pump system, and a unique front-facing mouthpiece for ease of use. |
The smallest and most affordable police-grade fuel cell sensor with internal pump system. |
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| Ideal Users | Law Enforcement, Corrections, DOT Screening, Military, Hospitals, Clinics, Businesses, Schools, Personal Use |
Law Enforcement, Corrections, DOT Screening, Military, Hospitals, Clinics, Businesses, Schools, Personal Use |
Law Enforcement, Corrections, DOT Screening, Military, Hospitals, Clinics, Businesses, Schools, Personal Use |
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| Breath Pump | Yes | Yes | Yes | |
| DOT-Approved | Yes | Yes | Yes | |
| Decimals | Three (0.000 %BAC) | Three (0.000 %BAC) | Three (0.000 %BAC) | |
| Dimensions | 2.3 x 4.8 x 0.8 in | 2.3 x 4.8 x 1.0 in | 2.0 x 4.75 x 0.75 in | |
| Weight | 4.8 oz (136g) | 4.4 oz (125g) | 4.4 oz (119g) | |
| Mouthpieces | 50 | 6 | 5 | |
| Power | 2 AA Batteries, included |
2 AA Batteries, included |
2 AAA Batteries, included |
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| Warranty | Full One-year Warranty |
Full One-year Warranty |
Full One-year Warranty |

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BACtrack breathalyzers offer you an affordable, convenient, and highly reliable way to measure your BAC levels and drink responsibly. |
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BACtrack has helped concerned parents and family members realize a higher level of transparency and accountability within their families. |
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Thousands of driving fatalities and workplace injuries could be avoided if business owners make the simple decision to check their customers’ and employees’ BAC levels. |
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For situations that demand trusted results, BACtrack professional-grade breathalyzers are the alcohol testing devices of choice. |
