Best Personal Breathalyzers for Truck Drivers

Commercial drivers are held to a 0.04 limit on duty and are put out of service for any detectable alcohol. A personal breathalyzer is a useful extra check the morning after a night out. It is never a guarantee: personal devices are less precise than police evidential equipment, so when in doubt, do not drive.

What to look for

• Fuel cell sensor. More accurate and consistent than cheaper semiconductor sensors.
• Calibration. Check how often it needs recalibration and what it costs.
• FDA clearance. Look for devices cleared for consumer use.
• Size and battery. It should live in your cab and hold a charge.

Popular options

• Fuel cell breathalyzers: the best choice for accuracy.
• BACtrack breathalyzers: a well known consumer brand with fuel cell models.
• Replacement mouthpieces: keep extras in the truck.

Other gear drivers rely on

• Dash cams for trucks: a record of what happened on the road.
• Paper log books: a backup during ELD outages.
• CDL study guides: for upgrades and endorsements.

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CommercialDUI.com is an independent information resource for commercial drivers. We are not a law firm and nothing on this site is legal advice. Laws change and vary by state, so confirm details with your state licensing agency or a licensed attorney.