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.

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.

Works very well and syncs with my phone through the app. Can work by itself without app as well. More accurate than the cheaper sub model

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!

I have no idea if it is accurate but it gets the ballpark, if you blow 3-4 times it seams to get pretty close. I rarely use the app but it’s nice when I want to know I’m sober, otherwise I only use it in the standalone mode. It’s really fun to bring to parties and laugh about how drunk we get and who can blow a higher number.

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

Nice little gadget to have around. I appreciate the option to display results on the unit or track results through the app. It is small and the company stands behind their product. I don't know that I'd pass it around at a gathering like the ads suggest but it is handy to have to know your actual BAC.

After figuring out how to properly blow into this, it has been easy to use and I believe to be accurate just based on personal use, estimating how much I drank, alcohol %, over what time period, what I've eaten, etc. I trust it to give me an accurate reading so I do not drive until the BAC % is at an acceptable level. I keep it in the console of my car.

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

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.

Very reliable, accurate and fast. I should have had one long ago, it's great for tracking BAC after (and during) an event.

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.

Is very accurate and very long battery life. Works well with my phone and tells how long till sober.

Works properly, and very easy to use has a nice feature where you can connect to your phone

We have used it several time for holiday parties. It's quite sobering when friends argue that they are fine to drive, and I tell them to prove it. Managed to get the keys from one of my most stubborn friends.

Excellent device and small perfect to keep in your car or add to your keychain

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

Can take a beating and still works. It is easy to use and very accurate.

I bought this for a friend who uses it on a regular basis -- unfortunate for her. The ease of use and accurate results make this a great buy.