Customer Ratings & Reviews

I recently purchased a BACtrack Go BT-KC20 keychain Breathalyzer. I have found it to be reliable and easy to use. Perfect for anyone who wants to know what their BAC level is before driving a car! Small, works in seconds, and will keep you out of trouble! I definitely would recommend this to a friend! Thanks BACtrack!

in my opinion, this handy little keychain unit is "easy to use" & it reliably measures BAC ~ (as far as I can determine) the first day I got it ~ I tried testing it, both before & after having a glass of wine; I blew a flat 0.00 before the glass of wine &, after the glass of wine, it definitely sensed my BAC (which was something like 0.03, if memory serves). I wanted to "practice" with it first, so I would be prepared, in case an "emergency" situation arose (as, I wouldn't want to be fumbling with it, trying to figure out how to use it, as a cop is approaching my vehicle). I would say, it was an "easy learning curve".....(I recommend practicing with it first). Just follow the instructions & listen for the beeps & you will be met with success! I got the hang of it after only a few trys. All you just have to do is: (1) hold the little silver button down (on the end) & it starts a countdown (from 26), visible on the display; (2) listen for the "beep" & start "blowing" (1 short beep signals for you to start "blowing", 1 long beep signals as you are blowing); &, (3) when the signal stops ~ you stop! (blowing). it's "as Simple as 1, 2, 3".....

Really great for getting a ballpark BAC! My guess is the low-star reviews are from user error. Never had a problem using it. Just wait 15 mins after the last drink and walhalla. You’ll also have to figure out a good pressure to blow into the he device, not too hard, but not too soft. Pretty cool and inexpensive device! Also great for party tricks as I’m sure you’ve read from others haha.

When I first bought this item I thought it would be a fun gift for a bachelorette party...but since opening it I've actually prevented 3 people from driving over the limit in just 1 month alone! This item saves lives!!! Every person should carry one for that just in case moment in life you never know when you'll need it and it being on a key chain is so convenient.

This item could save you a lot of money, or lives. It's hard to judge how much to drink is too much. It is easy to use, and readily available, about the size of a credit card.

If you have ever used a cheaper BAC reader, then you know how hard it is to read them. The screens are the old-fashioned monochromatic types, and the readings change from one second to the next. This thing was worth the investment. It has a high contrast screen with a bright blue backdrop and black numbers. It's easy to use and prompts you when it's ready. Its results don't change from one moment to the next, and the little tube you blow in makes the results more accurate.

My husband has a breathalyzer installed in his vehicle, so we purchased this on the go breathalyzer for precautionary measures, to prevent a lockout, which results in a $75 fee each time, as well as, a trip to the RMV. It fits in the palm of your hand, can be easily concealed if you don't care to have other people in your business. Most importantly, it's accurate. Anything you eat or drink that has an ingredient that ends in ol or yl will be detected.

Definitely a good product. The instructions were simple, it was easy to use, and it's so small that you could practically fit it anywhere. Such a great product to tuck away in the car or leave in the drawer at home (or the keychain of course), making sure you and your friends are not only safe, but legal to drive. It's not always about "how you feel", but also about what the numbers say.

This unit is pretty accurate and simple to use. Its not a legal BAC test but should be a great way to avoid ever having to take a real one.

Hopefully it’s accurate and I like that it’s fits on a key chain. It’s not only good for me but any car I ride in when the driver has had some alcohol

I love that the item is so small and you are able to carry it on a key chain. I've used it several times and it's worked great.

I love using this to keep me accountable and to even show off to people who wouldn’t believe me if I didn’t show them I’m sober. Battery life is short but honestly isn’t really a problem

Interesting to play with seems reasonably accurate but have not had a chance to verify it. Feels more like a novelty gift and at about 20$ its at that value,

I would've given this five stars but when I bought it brand-new and install the battery the battery was dead from the manufacturer. But besides that it works great

I have an IID in my car and this thing is apparently very accurate before I go use it! I also have some police friends who’s breathalyzer I used to test the accuracy of my device and seems almost spot on! Little device can help make responsible decisions or just be fun with testing in your friends.

Great little device. Gives a b.a.c. reading whether you have been drinking or not.

Unit worked as described and readings came out same when repeated. Sturdy enough and quality for the price.

Pretty accurate! A fun keychain to pull out at a party and make people laugh for sure. Size is comparable to a car key fob.

This is very handy and compact. It works very easily and is dependable.

This breathalyzer has saved me so many times from driving impaired. Highly recommend!