Customer Ratings & Reviews

Works great and is pretty accurate. Only problem is the mouthpiece is removable and if you lose it a drunk person will have difficulty blowing into it. Keychain ring is super convenient.

Good value. Change batteries for most accurate readings.

This is a great little tool to help the user know when it's time to call for a ride home. My brother is a professional truck driver AND an UBER/LYFT driver on weekends so knowing his BAC is critical to BOTH professions. He likes going out on Friday night for a few, then driving for UBER/LYFT on Saturday/Sunday (no drinking). He "guessed what he thought his BAC was (.04) and this tool readout agreed with his assessment. I feel better knowing that he can use this tool and can call Friday nights if he's close to the limit instead of simply "guessing" & losing BOTH of his driving livlihoods!

The beauty of this small and highly accurate device is that you can go into manual mode or Bluetooth which connects to your phone. I prefer the manual mode as it’s way easier but if you want your results saved to your phone the. Bluetooth mode makes sense. All you have to do is hold the small button for 7 seconds and it will switch out of each mode. Def a fan favorite at parties as everyone wants to see how drunk they are and will prevent people from drinking and driving if they are over the legal limit of 0.08. No breathalyzer is gonna be accurate if you’ve had a drink within the last 10 minutes so always wait at least 10 min from your last drink when using this. I guess the only thing is that the little plastic blow piece sometimes will fall out if it gets banged and passed around a lot but it does come with a small zip lock bag of 3 and Best Buy sells additional ones for cheap cost.

This device works as advertised but the audible signals are very hard to hear. That said, my hearing is far from perfect after years of flying military jets. I recommend this device if you need a small portable breathalyzer.

I love how easy it is to use and understand. I love the fact it connects to my phone. It’s the perfect size to fit in any of my purses. Keeps me and my friends safe from being to intoxicated and driving

Super easy to use with audio alerts to tell you when to stop blowing. Screen displays BAC within just a moment or so. Quality is good, but definitely doesn't feel "high quality" if that makes sense. The hardware is incredibly easy to use, but I'm giving 3/5 stars for ease of use because I couldn't get it to connect with BACtrack's proprietary app no matter how many times I tried.

Very accurate. Very reliable. Just as accurate as any professional grade

Very handy , very accurate i use it when boating on the Missouri.

I was arrested for DUI and had to put an intoxalock system put in my vehicle. I got this to make sure I am not trying to operate the vehicle while under the influence. It's easy to use and give peace of mind

Handy little gadget to have with you on a keychain when needed. Seems to be very accurate. No issues. I like that it provides a bluetooth option to use with your phone as well.

A more pricey option, but it has been reliable and accurate. Very conveniently sized as well.

If wanting to know where ya stand before using your vehicle this thing will save your butt. It will register down to the thousandth. Good quality and easy to pack. The size of a 9volt battery

Works pretty accurately, it’s a good tool To use just to make sure you’re not over a limit and think you can still drive. Prove you wrong for your safety and others!

Very convenient and portable detector. Accurate too

I love this little breathalyzer. It is very accurate and small enough to carry with you any time.

It’s super easy to use and is perfect on a night out to see how far everyone is. We had a DD and did not drive

This mobile breathalyzer is really accurate! It keeps me out of trouble, it wasn't that expensive for the quality, and it stays on my keychain with my keys. I highly recommend!

Accurate, great tool! Keep yourself out of trouble by knowing your level. Also, a pretty good party trick.

Fun little gadget to take to the bars with you or just hanging out with friends.