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Good Quality Personal Use Breath Alcohol Tester Breathalyzer: instructions? A:Yes, you can refer to the instructions to operate 4Q:How often do I need to wait after drinking? AWait 20 minutes for testing 5Q:Does it comes with mouthpieces? A:Yes, it comes ...

Digital Alcohol Tester Easy To Use with A Retractable Mouthpiece for Personal Alcohol Breath Testing: after blowing? A:Yes......2Q:Does this breathalyzer measure ketones for the ketogenic diet? A: No, it can not, it's just an alcohol tester3Q:Does alcohol tester contain instructions? A:Yes, you can ...

Roadway Safety FDA Approval Rechargeable Digital Alcohol Tester for Car Drivers: instructions? A:Yes, you can refer to the instructions to operate 4Q:How often do I need to wait after drinking? AWait 20 minutes for testing 5Q:Does it comes with mouthpieces? A:Yes 6Q:Can this ...

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Good Quality Personal Use Breath Alcohol Tester Breathalyzer