- Mobile Rechargeable Smartphone Breathalyzer | App-Enabled | Professional-Grade Accuracy | BAC Alcohol Tester for Home & Personal Use | 3 Mouthpieces Included

So I've had this unit for three days, very accurate quick and easy to use (I wouldn't change anything on it). With all the regulations in Calif why isn't a law in place that would provide self testing in establishments? How much money is being extracted from those who have never been tested, totally unaware? Do not set yourself up to learn about alcohol levels from the police. Here are the benefits of this device: a) learn the cumulative effects of each drink wait 15 minutes before re-testing b) learn the rate, time it takes to become sober, confirm with re-testing c) for college kids this unit is a great way to self test and learn from. If you drink after working out you probably will have euphoria from adrenaline and could think the alcohol has burned off ,WRONG ! (you will see in the % numbers) d) if you make you're drinks strong (say at home) you will understand this unit will not lie, so you can't count a strong drink as equal to just 1 drink (%) e) as another wrote in their review they now drink less, let your readings be your guide (there is no value in drinking to the point of blackout?) f) You will learn first hand what % alcohol has and effects; balance issues, blackout can't remember details, slurring etc. g) if relaxing after a long day having a few and you're thinking about driving be sure to self test avoid guessing and just hoping your ok h) get family members a gift, college kids need to learn at what point they are a .08 about themselves and the effects of alcohol so they are well advised and can make educated decisions before driving i) Learning from this device you will be able to accurately self guess within range you're own % levels based on knowledge not wild guessing ! j) Avoid $20,000 DUI costs. Avoid being a victim of legal and illegal sobriety tests and the system (see YouTube for more info)

This unit is great, once it arrived I quickly charged it while downloading the app. First a word about privacy, you have the choice of setting up a cloud account and if you want to save data to your health profile on iPhone, I don't like the idea of saving/broadcasting potentially damaging personal data if I can help it so I turned both options off. Legally none of it should be admissible (at least in my state) no reason to be the one to fight that battle. Thankfully the developers do not hobble the app in any way if you choose to not use their cloud services. The unit itself is small with rounded corners it doesn't snag in my pocket and it's slim enough to not print very much when sitting down. The stark white/black helps when it's in my girlfriends' handbag making it easy to find in a darkened bar. It comes with us anytime we might be drinking and away from home. It has rechargeable batteries and they seem to last a very long time additionally the app shows battery level at start-up. Using BACtrack is easy, first, you must wait 15 minutes from the time of your last drink or your readings will be artificially high. Once you are past the 15 minutes just hold the on/off button down until it lights up, open the app wait a few seconds and tap the screen once "BAC test" pops up. The unit warms up then asks you to blow (also a light on the hand held will flash), it might take a few tries to get used to it but once you do it is very easy. Wait a few more seconds and your BAC is displayed. It's "time to sober" is interesting, for me it is usually off by some margin. My only complaint is it has a "need a ride" button that opens your uber app, although it is buried in the settings menu for some reason if a person blows over or even at .06 I wish it would pop up on the results page. Even on nights when I wasn't drinking I've had several friends blow and end up taking uber or waiting the 20-30 minutes to get to the legal limit. Overall this thing is great. The design of the unit and the app are very simple and well done. When potentially dealing with impaired people simple is important. I like knowing what my limits are and knowing when I go past them helps ensure I make the correct choice to drive or get uber.

This thing is a life saver!! Not literally in my case, but will be for many. I drink responsibly when I drive. That said, soemtimes an event ends early or you just feel the impact of alcohol more and don't want to rely on the rule of thumb methods (ie one drink per hour). I equate it to the rhythm method for birth control. Works sometimes, but you do it enough and you'll get pregnant. I got pulled over while swerving a tad after looking for something in my car. I had drinks in 7 hours but didn't eat much. Thank goodness the police offiIcer didn't ask if I was drinking and I sounded perfectly fine. however, I was pretty certain I would have been close to the legal limit... I bought one of these instantly the next day and thrilled I only got a speeding ticket. My brothers each got one and they are a blast at parties.. They are tested to be very accurate.! You also learn that your breath is not accurate within 15 minutes of any drink.. EVEN knowing just this and seeing how it rapdly goes down 15 minutes after a drink is enough of a lesson to avoid a false police reading. .Even if you are perfectly legal, DON'T drive within 15 minutes of your last drink or you may find yourself in jail. It also shows you just how reasonable at 0.8% BAC is very reasonable.. You really do feel that you have been drinking at .07, so makes you appreciate the law even more... Driving while drinking, as we know, kills many. Your judgement is off, so you may fool yourself into thinking you are fine.. You won't fool a breathalyzer. You also will get hit with likely $3,000 in insurance addons. Most states have upwards of $3000 in fines on top of that and MOST states have mandatory loss of license. This thing works flawlessly. I keep it charged in my car. There is just no need to play russian roulette with your license, money and lives.. Remember, I am NOT a big drinker and feel it is a really responsible thing for anyone who EVER has a drink and drives to own!!!

This product is worthless if you don't voluntarily accept that it is going to destroy your life. The first thing the BACtrack app requires is for you to enter your email address. If you do not wish to, well, you simply cannot use your $100 Breathalyzer purchase at all. There are no other buttons, menus, or settings in the app until you let it phone home. While my email address is by no means sensitive information, a legal connection between it and my purchased BACtrack Mobile hardware most certainly is. On page 6 of the Privacy Policy booklet, Section 2.2, "Information We Receive or Collect When you Use the Service on a Mobile Device", you will find: "If you access the Service from your mobile telephone or other mobile device, including iPads and tablets, we collect mobile device identifiers, including MAC Address, and IP Address." As an electrical engineer who's written a TCP/IP communications software stack before and is quite familiar with Bluetooth and Internet Protocols, I'd very much like to highlight that MAC addresses are a globally unique identifier that are permanently stored in hardware devices. In other words, they are a type of serial number. They do not normally get transmitted onto the Internet, which uses IP addresses instead, so this policy suggests that KHN Solutions is purposely recording and sending your hardware's MAC address back to them. Coupling your MAC address(es) along with your email address means they will forever in the future, trace BAC readings collected on your hardware back to you. Keep in mind that all Bluetooth devices also have MAC addresses, not just Ethernet and Wi-Fi devices, so the Privacy Policy's lack of clarification on which MAC addresses has to be assumed to mean all MAC addresses for your phone/tablet and the Breathalyzer hardware. To all those 5 star reviewers, I have some advice for you: remember and live by the words: "anything you say can and will be used against you in a court of law". Also, since you aren't being arrested right now, instead interpret this as "anything you say or do can and will be used against you in any context at any time in the future if it looks bad". I know how fun it is to pull out a Breathalyzer at a party. Not only are your friends curious about themselves, but they also like to create high scores. In fact, while out of town and definitely not driving, such as on a cruise ship, I've personally admonished my peers and told them they need to do a shot when they score below 0.04% estimated BAC. As fun as these situations are, these results absolutely, positively, do not belong on Facebook or any other company's database, along with globally traceable hardware ID numbers, your GPS coordinates, email address, and first and last name. Consider how innocent it is to sip pure vodka and then immediately blow into the Breathalyzer for a fantastic Facebook photo taken in your own home. Now consider that if you Google your name, you will see your defunct Myspace account show up from 9 years ago. Let's pretend that 4 years from now, you interview for a new job, only to never receive an offer. One very plausible reason for not getting an offer is because the potential employer Googled you and happened to see a fantastic 0.321% BAC photo of you. It isn't so fantastic that the employer has no background information on your true drinking habits, no way to legally ask you about this photo, and is left with an impression that you can impossibly stay standing with extreme intoxication. The only reasonable conclusion is that you are probably a heavy alcoholic and likely an unreliable perspective employee. Consider also that this same measurement without any Facebook photo or authorization by you for sharing can also haunt you a decade from now. Say your spouse is leaving you, you're depressed and you get arrested for a genuine DUI @ 0.07% or 0.15% suspected BAC. In my state, these are just under the limits of an easily convicted DUI or an Extreme DUI, which is a felony. Actual police readings and blood measurements are not exact; as I understand it, it can take an hour before they get you processed and have your blood taken. This means your BAC has gone down some from its peak and the prosecution then must find other evidence to support the more unpleasant charges they have against you. In such a case, merely historically owning the BACtrack Mobile Breathalyzer and submitting your "email address for 1-year warranty registration" means you are in a subpoenable KHN Solutions database which has a fictitiously generated 0.321% BAC reading in it tied directly to you. The prosecutor will show this to the jury, your defense will object that this is circumstantial, unreliable information not tied to your DUI, the judge will agree and tell the jury to disregard what the prosecutor just showed you, and then the trial will continue normally. You will never have an opportunity to clarify why and how this reading came into existence since it isn't considered admissible evidence by the court in the first place. No matter what though, the jury DID hear it and it DOES bode ill for you. They may well convict you of a felony, destroying your life from then on as you find it problematic getting jobs or doing anything that requires a background check. A few other wise Amazon reviews see the problem with this product too, which has received replies from the BACtrack vendor. Something I observe is that the vendor downplays the significance of keeping your BAC records, photos, and other self-incriminating evidence in the cloud. They claim you already store credit card data, bank account credentials, and other sensitive information in the cloud, so what KHN Solutions is doing is not risky to you. Goodness me are they full of crap. If someone steals my bank account login, the worst they can do is siphon my account to $0. I won't be happy, but my life will continue as it always has in less than 6 months time. Credit cards are even safer. Meanwhile, if someone important mistakenly believes that I'm an alcoholic, my life will change in ways I cannot imagine or predict, nor sometimes even detect. From loosing job opportunities, to child custody battles, to DUI charges, to would be eHarmony relationships, to who knows what else, you really do have a lot more to lose by buying or using this product than bank fraud or identity theft. The sad part for me is that I've purchased a, now obsolete and discontinued, contactless silicon based BACtrack to get me interested, followed by a BACtrack S75 Pro, and then two BACtrack S80 Pros. I am a strong advocate of informed and sensible decision making and participate in social activity clubs that regularly do include alcohol consumption. I therefore, also have always recommended or given as gifts, the fuel cell based BACtrack products to my friends. I loved them and expected the BACtrack Mobile to be the latest and greatest, self-powered and compact product to buy. I also happen to work at a semiconductor company that manufactures some of the silicon contained in BACtrack devices, so I've always wanted to promote the BACtrack brand and see business success for the vendor. Now all I want to do is educate people and see KHN Solutions go bankrupt. I've been completely tricked with a $100 hardware purchase, when in fact the BACtrap Mobile Breathalyzer is a data mining device requiring a "free" subscription/license to service I most definitely do not want to have any part of. I'm sure I could return it and get my money back, but I've never once returned an online purchase and my 1 star rating is not over money. It's about being evil. Getting my money back won't help cure evil. Letting them keep my money such that my anger lasts longer and I educate more people against BACtracks will perhaps bring me minor relief. Perhaps one of the most ironic aspects is that I'm very pro-law enforcement and I didn't drink a drop of alcohol in the past 2 years. In the past, I have volunteered to let police officers stick needles in me to draw my blood in a classroom environment (they need phlebotomy certification and renewals to handle DUI cases). Being on the wagon is not because of an incident, nor am I ever at risk of a DUI, but because I'm partially Asian and lack a gene needed to metabolize alcohol. I.e. alcohol makes me sick way too quickly. I liked BACtracks because they were fun to use on my friends, and peer pressure works in reverse. Seeing a BAC estimate that is high has shamed people into sleeping on the host's couch. I can't do this with a BACtrack that phones home and holds unknowable risks to myself and my friends.

Very good product. Its accurate, compact and easy to use. No subscriptions required, easy to screen shot on phone for free with date/time/location stamp. Only knocked a star off before the phone app can be finicky. Sometimes it'll say you need to turn it on when its already on. The work around is to hard close the app, reopen, and it connects every time - a small hurdle.

After doing some research, I decided on the BACtrack Mobile. Its specs seemed to have the most accuracy, and I found the ability to track results incredibly helpful. Being able to plot results on a graph, you can see over time your BAC decreasing. This gives you a much better idea of when it will be safer to drive. The unit powers on in about a second, and after you open the app and tap Take Reading, it warms up within about 10 seconds. Results are displayed within another 10 seconds or so. I've found this to be incredibly accurate, and another great feature is the "Time to Sobriety" where it tells you the approximate time that your BAC will be at 0%. My only wish is that you can see this graph when you tap on your previous results, not just the current one being recorded. Other reviews have complained there's no LCD and you need to have it connected via BlueTooth to your phone to record results. So? It's really not a hassle, and the whole point of the "Mobile" piece is to get the features of the app. Battery life is excellent, I've only had to charge the unit once after using it probably close to 40 or 50 times. The only negative I've found is every once in a while the app will crash on my Galaxy S5 upon opening. It re launches automatically, and works fine afterwards. For the price, I don't think you can beat the quality of the device, its accuracy, or its feature set.

When I first bought this I thought it was defective—I did followed the instructions I thought and it still gave me an error message. I emailed tech support for the company and they let me know I was doing it wrong—blow gently! You doing need to think of it like blowing out birthday candles, rather think of it like a gentle sigh as you blow…the device makes a popping noise once you’re done, but it’s not a race by any means. The app is helpful and easy to use—it guides you through the process while you wait for it to warm up, and the data log is helpful for someone who is trying to build trust with people who may have felt wronged in the past. I’ve been using it for two weeks and the battery life is still reading as full, so I’d say you don’t have to worry about making sure it’s charged. Portability is fantastic as well…it’s about half the size of a deck of cards, but I’d say the travel case is a necessity if you’re going to keep it in your pocket. The shape isn’t really going to snag on anything, but the mouthpiece does stick out from the main body if you choose to use it. Value for money is a matter of perspective—I used my HSA account to buy this which works well for me since I never come close to using my yearly savings and I didn’t have to work it into my budget as I was already stressed about money from rehab. That said, looking at the peace of mind my family and friends get from me blowing three times a day without having the cost of a 24/7 program makes it fantastic value for money. That’s not even considering what would happen if your spouse asks for a divorce because they suspect you’re still drinking….

I've tested this against BAC's Professional version; BACtrack S80 Professional Breathalyzer, Portable Breath Alcohol Tester and it is within 0.001 so I consider that very accurate. I love that it's portable and can take it with me wherever I go. The app is slick and easy to use and it's fun to play with friends and guess everyone's level. As other people have posted, once you bring it out, you will have everyone wanting to try it, so if you are concerned about germs, be sure to buy extra mouthpieces BACtrack Mobile Smartphone Breathalyzer Mouthpieces (Pack of 10) . (Yes, I've had complete strangers ask to use it.) It says you can test without a mouthpiece, but I've tried and always run out of breath too soon, so I really can't say if it works without a mouthpiece. With the mouthpiece, I've never had a problem of running out of air and neither has anyone else. I personally have not had issues with the Bluetooth, it connects right away. Of course it would be nice to have a display on the device itself, but for it's portability and it is one of BAC's high-end offerings, I chose size over the convenience. I just ensure that before a night on the town I've charged my phone and the breathalyzer and I'm ready to roll. It also comes in a handy little pouch that fits easily in my purse and can hold a couple of mouthpieces too. It seems the majority of the bad reviews are because people are not following the instructions. Have it charged and wait 15 minutes after your last drink you will not get accurate results. I can't stress that enough, wait a minimum of 15 minutes!

El tamaño es perfecto, bastante discreto, la pila tiene una buena duración. Las funcionalidades de la app para el smartphone son bastánte útiles. Es intuitivo y fácil de utilizar.

Best quality and accurency

I bought this for my boyfriend for his 18th and he likes it :) I have only used it a couple times and it seems very accurate.

Ich hab mir BACtrack vor allem bestellt um an Tagen nach Partys zu kontrollieren ob ich noch Restalkohol habe. (Möchte nur bei 0,0 fahren und wollte halt n ungefähren Anhaltspunkt haben ob das gegeben ist.) Die Werte kommen bei meinem Gerät einigermaßen hin. (Im Vergleich zu professionellen Geräten ca. +/- 0.1 Promille) Die Umstellung der Einheiten zu Promille, etc. ist mittlerweile gegeben. Ich finde es ein nützliches Spielzeug; man sollte sich aber nicht darauf verlassen. -1 Stern für die Genauigkeit, ansonsten habe ich nichts zu beanstanden, auch die Bedienung ist kinderleicht und auch bei höheren Messwerten immernoch handhabbar.

Fonctionne très bien rien à redire