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.

This little guy is so accurate. A must have for driving after going out or just to test a loved one. Super happy with this purchase I've tried others & weren't accurate. I calibrated it next to a real cop one

Good value. Change batteries for most accurate readings.

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

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

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 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!

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.

It works great for personal use, but I was disappointed with the Bluetooth connectivity. You have to connect it every single time (when it decides to connect), and blow while having the app open. I wish it would log your records, and batch them to the app when connected. Would not recommend purchasing as a tracking device to monitor others unless you can be by their side every time you want to test them. Get the regular, non-bluetooth one for way cheaper.

These are totally worth it. It is nice to have that extra check on yourself before you decide to drive (or not). Really accurate and people always want to try it when I'm with friends or parties. This little thing could potentially save someone's life, or your own.

This product has been tested by police officers and is same calibration as theres due to its pro-grade accuracy (BluFire fuel cell) witch if you want to be safe while partying or out at a restaurant or bar drinking youll know for sure if your safe to drive or not

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.

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

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.

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

Anyone who drinks should have one of these in your keychain. This device is great and very accurate.

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.

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.

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

Ive had this for a while now and its a life saver. Doesnt take up much room in your pockets and it works really good.