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⚡ Stay sharp, stay safe — know your limits with pro-grade confidence!
The BACtrack S80 is a professional-grade breathalyzer featuring BACtrack’s largest platinum-based Xtend Fuel Cell Sensor, delivering hospital and law enforcement-level accuracy. It’s DOT, NHTSA approved, and FDA 510(k) cleared, ensuring trusted and reliable BAC testing. Designed for simplicity, it operates with one button and runs on included AA batteries. Compact and portable, it’s perfect for personal or professional use, backed by a one-year warranty and acclaimed as the #1 personal breathalyzer by Wirecutter.








| Best Sellers Rank | #9,010 in Health & Household ( See Top 100 in Health & Household ) #1 in Personal Breathalyzers #951 in Sales & Deals |
| Customer Reviews | 4.4 out of 5 stars 8,441 Reviews |
G**S
Very Accurate, Perfect Size
I bought this for our company holiday party. It's an open-bar affair, maybe eighty to ninety boisterous, twenty-something millennials in attendance; my idea was to hand out wrist bands (Advantus Crowd Management Tyvek Wristbands: they worked great) in exchange for keys/Uber receipts, and make people blow in the breathalyzer to get their keys back. Those who failed the BACtrack could get their keys from the lobby the next morning. Great idea, right? In execution, not so much. Almost immediately my people landed on the idea of having a personal mouthpiece (I bought two fifty-packs of BACtrack Breathalyzer Mouthpieces for fairly cheap, also a smart move) and "competing" to see who could get the highest BAC. Many times I heard, "I'm only at a 0.06, time for another pickle-back/Jamo" followed by, much to my chagrin, a hearty round of cheers. Needless to say the BACtrac S80 Pro Breathalyzer was immediately retired. My wife and I did gauge ourselves at home, for fun, and found the breathalyzer to be rather accurate. Also interesting as that my wife, who weighs less than half of what I do, blows a 0.11 after three glasses of wine where I'm at a 0.05. I will always be DD, with this thing as a good backup gauge. Also important, and this is reiterated repeatedly in the instructions: you have to abstain from consuming alcohol for 15-20 minutes to get an accurate reading, otherwise residual booze in the mouth/throat will presumably throw this thing off. Sure the BACtrack S80 Pro is pricey, but during college I messed around with a bunch of cheap breathalyzers that were never very accurate. This thing is always spot-on, and well worth the investment. I haven't measured it against a police breathalayzer, knock on wood, so mirroring the sentiments of the thing's documentation I would caution against overreliance. I've used it for a month now without having to change the battery. We marked peoples' personal mouthpieces with colored sharpies at a party so that people could have their own without being wasteful. They also wash just fine, so I can reuse them for the next soiree. The instructions are crystal clear, you have to blow for a sustained ten seconds or so, this is very easy to explain even while intoxicated. A caveat: super inebriated people might vomit when trying to take a deep breath/blow, so prognosticate and monitor accordingly. We lost the carrying case, but it was handy when we had it, with a space for a spare battery and a dozen or so mouthpieces. Comment with any further questions, this is a big purchase for something that might seem like a novelty, but one that I heartily recommend for fun, durability and utility.
B**P
I cannot afford a DUI, but I can afford this device.
I need to have a means to check my BAC before driving. I am a very good driver - in almost 30 years, I have never so much as dented a car I was driving except the one time I was stopped at a traffic light and got rear-ended. That said, just because I think - even *know* - that "I can drive", the law may say otherwise. With limits reduced to a meager 0.08%, I am entirely positive I have driven over that limit before and I don't want that to happen again. I cannot afford a DUI. I shopped around and immediately discarded all of the cheap-o keychain options. I am not interested in fail/pass (read: alcohol present vs. not, at all) device. I want an accurate measurement. If I am at 0.08%, or above, I look to either find another mode of transportation or wait it out some, depending. In purchasing this device, I spent more than I had anticipated, but this is an occasion where quality cannot be sacrificed. It arrived quickly after ordering. Within the box was a nice carrying case, the device, an instruction booklet, a registration reminder, a pair of AA batteries, and a half-dozen individually sealed mouthpieces. I reviewed the instruction booklet. It is front-loaded with a few pages of general information RE: alcohol consumption. After that, there are a couple pages dedicated to the operation of the device. The instructions were stone-cold simple except for ONE thing. It made reference to pressing the "Power Button" which is, in fact, the "Start" button. I took a measurement and it seemed to operate just fine, registering a solid 0.00% result, which is good since it is still the middle of the afternoon and I am not an alcoholic. The device is solidly built and everything fits nicely in the case, which zippers shut. It can easily fit in one of the several storage cubbies in our car. I intend to throw a spare set of batteries in there and leave it in the vehicle. Anyway, my wife and I have an active social life and, quite often, it involves some booze. I'll probably be using this device once a week. I will update this review with tales of "actual usage" as they unfold. I may just "calibrate" it tonight, for kicks. There is nothing I see, so far, though that renders this anything less than a five star product. Only tips are: Have spare batteries. Register the product online (takes 30 seconds). Wait 20 minutes after your last drink before expecting an accurate measurement. Be prepared to send it off for calibration once a year. That should do it. Good luck and stay safe and out of trouble! EDIT: The night I purchased the device, I drank some beers and measured the results. They were exactly what I expected them to be. Measuring after waiting 20 minutes after each beer yielded increasing results. I did this for eight beers. About two hours after no longer drinking, the results started to go downward. I am confident I will not only have a good measurement when it comes time to drive, but I will also develop a better sense of what different levels of buzzed/drunk translate to in terms of raw BAC numbers...and how long those numbers take to diminish after stopping drinking for the evening. This is good information to have. EDIT2: After using this device for some months, I absolutely love it. I have basically trained myself to enjoy the evening, but end it under the legal limit. When I go to the car, I check my level and, almost without fail, I am able to predict what it is within 0.005...just based upon what I have consumed and how I feel. No more guesswork. No more risk. I cannot recommend this enough. I have had friends witness my use of the device (and the eerie accuracy of my predictions..."I feel like about a 0.065"...BOOM!) and they have been quite impressed. Hopefully the behavior will rub off on a few of them and they, too, will render themselves immune to unnecessary trouble. EDIT3: 6/26/2015. Well, some nasty person broke into my Jeep Wrangler while I was attending a rock concert with my son, destroyed my locked glove compartment (but couldn't get it open), cracked open the locked middle console, and stole my BACtrack S80 (among other things). I just ordered $800 worth of Tuffy gear (secure glove compartment, middle console, and rear compartment), so that's not going to happen again, but, more pertinent to this product, I am purchasing the same exact BACtrack S80, again. That is how good it is. Meh. It was up for calibration, anyway.
D**N
An easy-to-use device, and seemingly quite accurate
If this device tells you that you are too intoxicated to drive, you probably are. If it gives you a reading under the statutory threshold of intoxication, that may be reassuring but it won't help you if you run into a law enforcement BAC test on the way home that differs from the reading you got on this device. But within reason, this device will give you a pretty good idea if you are too messed up to drive or far enough on the downside of statutory intoxication to drive safely if you drive carefully. But you drive carefully all the time anyway, right? The BAC readings I have received from this device in tests at home are consistent with what I would have predicted based on the alcohol content and the quantity of the beer or wine I consumed. We all have somewhere around 160 ounces of blood in our bodies. If you drink 12 ounces (two glasses) of 13% wine, you are consuming about 1.6 ounces of alcohol. Mix that into your blood, and by simple arithmetic you have a blood alcohol level of .1, which makes you legally intoxicated whether you think you are or not. Two cans of 7.5% beer (24 ounces) will put you at just about the same level of alcohol consumption. If you are consuming something stronger, two ounces of 40% scotch will put you right at the edge of the statutory intoxication threshold (.08) and three ounces will put you over it. It takes less alcohol to be legally drunk than you probably think it does. Subjectively, this device gave me an interesting insight. My sense of impairment was strong enough when I blew .06 that I would not have trusted myself to drive a car safely based solely on my own perception of my level of impairment. I didn't need a digital read-out to tell me I would want to wait at least another half hour before trying to drive, and maybe engaging in some exercise while I was waiting to burn up the alcohol faster. So far in-home testing of this device has produced readings that seem consistent with my subjective sense of intoxication on different occasions, and on single occasions as I test myself through a two hour period after consuming alcohol, the BAC extinction curve seems to match pretty closely my declining subjective sense of intoxication (or increasing sense of intellectual and reactive competence if you want to think of it that way). The magic word, of course, is estimated. These devices do not directly measure blood alcohol content, but rather estimate it from the amount of correlated chemicals contained in a timed slice of forced breath (five seconds on this device). There are medical conditions that can give elevated or positive readings even when little or no alcohol has been consumed, so read up about false positives, test yourself when you are alcohol free, and be prepared to evaluate unexpected results if you receive them. Used thoughtfully, this device can train you in the first place to realize what a level of statutory intoxication feels like. Secondarily, if you want to test yourself in the parking lot before driving home, and barring the complications of diet, chemical compounds in the air that you are breathing at the time you blow into the machine, or other such meddlesome variables, it will give you a decent indication of whether you are good to go or ought to take a long walk around the edge of the parking lot before firing up the car and driving off. This is NOT an excuse machine. It is a measurement device designed to give you the best information about your condition that it can based on standard assumptions about normal human metabolism and contexts in which test readings are taken. Keep the variables in mind, stay well on the good side of the statutory threshold, and all should be well.
M**E
... say the obvious - don't drink and drive - good, that is out of the way So I ...
OK let me just say the obvious - don't drink and drive - good, that is out of the way So I purchased this device after being stopped a few weeks back by the local gendarme. I had been out to dinner with a co-worker, had a few glasses of wine, and was heading home, when we were stopped for speeding. It happens. I was asked to exit the vehicle for field sobriety tests, and for a breath sample - now, most people know a handheld unit by the side of the road is only an indicator, not something admissible, but I blew anyway, came a hair under the .08 limit (.058 actually), was warned I could be charged with impaired operation, and generally just had the shit scared out of me. Ultimately we were let go. It got me thinking - I always considered these to be for someone intent on beating a DUI by measuring their BAC, but I never thought of the multiple times over the years, I simply lost track of that shot of bourbon, or that glass of wine - not out to get buzzed, just out perhaps after work for a few with friends, and how many times apparently, I may have been close to or even over the limit without even knowing. Scary stuff - and to those who say 'even one drink is too many', I agree, but the reality is, most of us do it from time to time, so I'm not playing the moral compass here. So everyone online, including online tests by enGadget, Wirecutter and the rest kept mentioning this slick little unit. After much research, I grabbed one, just to make a determination of where I was heading out - the unanticipated side effect, was it also made me conscious of my intake. If I wasn't comfortable, regardless of the number, I always had Uber (which I love anyway). I paid 129.00 for the unit, and factored in calibration, which should be about every 6 months based on usage, and the fact it seems to be a popular thing among my friends, curious as to where they stand before leaving. AGAIN, it is just a reading - your BAC will continue to rise as your body processes alcohol on the way home if you have had a drink, so use it to make good decisions, nothing more. SO ... things I like about this one? NHTSA and DOT approved, single button operation, long battery life (1500 reads if what I read is correct), fuel cell sensor, compact, and fast - once you blow, you get most readings in 5-10 seconds, and can do a follow up test almost immediately. The screen is big, backlit, and easy to use - and one thing I NEVER imagined? It's a great conversation starter - not to be shallow, but the girls will come to YOU, and it's fun to talk to them about it - oh so blame me! lol I'm single. Other things I like? the great little padded carrying case which holds everything you need, the supplied mouthpieces, and yea even silly things like the fact the give you a pair of Duracell 'copper top' Batteries and not some cheap throwaways. If there are CONS I haven't seen them yet, but it's early - like anything else, this is just a tool nothing more. It arrived well packaged, and the next day from Amazon, has a one year warranty, and is consistently rated the best in its category. One last item of interest ... I showed this to my co-worker who was in the car originally. She reached into her purse laughing and ... pulled out an S80 (apparently she has owned one for the past year). She loves hers also. So in closing, if you are buying one because you like to go on benders, it's probably a better idea to re-evaluate why you go out, and/or download the Uber App to your phone - If you are wondering where your BAC is after dinner, want to check your teens, have an interlock in the car and want to avoid being locked out, or need to verify 0.000 each morning before going to a DOT job, this is the unit. Enjoy. Cons? I haven't found one yet, but give it time -
A**N
Seller is amazing. I didn’t like it, they made it right
So-- I'm returnig this because... I couldn't ever get a reading. I wantd to prove to my family my sobritty. Too long of a story here, but I don't drink, but (have been accused, etc.. none of that matters. I want to show, and prove my health state. It didn't work-- as in, it just errored out. I prolly got a bad device, sure ok... its going back. I just didn't work-- not like "oops your 1000% wasted or 1000% sober" it just errored out. And-- for me, its personal. So, this really failed me, in ways that are beyond the cost. So-- I can't recommend it. Not now. And I'm happy to re-review (But I'm not paying for it, so-- ya, vendor... send another for redemption)... but for me, and yall can read my other reviews--- this one was personal...and it failed... BADLY. On the "plus side", the unit was clean, all turns on, etc.. but it just ... literally didn't work, like--- at all. And I'lll be honest here, I've had to prove myself for a long time, I hoped this would help me show that. instead, it embarassed me--- that cost me more than the price of the product. God bleess, and goodbye. I want to say, I'll give the seller the opportunity to replace,etc and re-review. and I'll update this as is appropriate. I have to update this. I wasn’t happy with the product, and that’s fair… stuff happens. However— I have to commend their customer support. Honest, friendly, and happy to refund or make it right. In the most sincere manner, professional. I was impressed. Did it work for me? No.. maybe shipping broke it? Not sure.. but they 110% too care of me. Beyond impressive compared to most sellers. Even if this wasn’t the product “for me” or whatever— seller is 1000% solid no bs…. So, whatever they sell, I have full confidence they will make everything right… that’s rare today folks!
S**.
The darn thing has an EXPIRATION date... A secret one.
This product worked for ~200 reads. I sent it to calibration through BACtrack and they emailed me a week later to let me know that my unit had failed calibration. BACtrack Solution to my problem: Refund the calibration charge, as a courtesy (a given). Send the unit back to me as well as a $40 coupon to purchase another unit from their website. My problem with their solution: 1. The battery is rated for ~1500 reads... the unit itself isn't operable after ~200 reads. 2. I paid for a unit that could be calibrated for this very reason 3. Why would they charge a calibration fee for a unit that can supposedly be calibrated, but can fail calibration at the same time? Shouldn't they be able to re-calibrate so that it passes the specifications? 3a. There is obviously a quality problem here. I hold them responsible just as I would hold Apple responsible to replace the faulty chipset on my MacBook when it was found to be faulty due to quality (which they did). How many people actually send their breathalyzer in for calibration? Well I calibrate all of my measuring tools because I have been exposed to highly regulated pharmaceutical labs that run devices requiring calibration on a monthly or even daily basis. If BACtrack can't identify this as a quality issue and honestly address it, why would I trust them to let me know when I am blowing over the legal limit? Would you guess that your device isn't going to pass calibration after 200 reads? Would you keep using it knowing that its not guaranteeing precision or accuracy? Probably not. My proposed solution to BACtrack: Send me a new one and keep the broken one, as a matter of ethical customer service decision-making. If you can't guarantee quality after 200 reads, then stop telling people that the battery will last 1500 reads. If you can't build a device that can be re-calibrated, then don't charge me for calibration. My bottom line is that I either get a replacement from BACtrack, or I purchase the Trace from Costco and leverage my membership guarantee every time it doesn't pass calibration. I've wasted enough time writing this review. Get your breathalyzer "calibrated"... more like "validated" soon! It's a fool-proof way of guaranteeing that the breathalyzer is working FOR YOU and not FOR BACtrack's pocketbook. ***UPDATE*** I spoke to BACtrack customer service on the phone and here is what I got. The units are expected to last anywhere from 3-5 years (time dependent not based on number of reads). I have owned this thing for nearly four years. I'm very disappointed with BACtrack's dishonesty when marketing their product as being used for 1500 times on a single battery cycle, when customer service clearly states 3-5 year lifespan (maybe print a "best by" date???), even with "calibration". I suggest they change their verbiage from "calibration" to "verification" soon. Their calibration service consists of reading the device at high, low and mid BAC standards and comparing it to the acceptable range. There is no method of calibration, just verification. According to their customer service, this is a common occurrence after owning the device for three years. At least put an expiration date or some sort of specification that lets your customers know about this or else you'll inevitably have blood on your hands. For example, imagine an AED chest pad or battery doesn't have an expiration date. If it fails to properly operate and there is not safeguard or printed date, then good luck to you buddy!
C**.
Quick and accurate
Pretty cool. It’s teaching me how to tell how much I’ve had. But I will still rely on the machine for accuracy.
A**R
Reliable—As accurate as Intoxalock
This is the best you can buy on the consumer market. When I was younger and heavy into drinking, I had a court-mandated, portable, briefcase Intoxalock device (not a proud moment, I know). Me, being as conniving as I was at the time, figured out exactly how much I could drink safely within the time window before the next sample cycle. This thing was more accurate than the probation-issued interlock device. Not saying I’m proud of my behavior (10 years ago), but just testifying to the accuracy of the device. Keep in mind, after X amount of blows, the detection element itself is going to be slightly saturated with ethanol residue and may potentially show lower than actual readings, hence the need for recalibrations. I would say they’re trustworthy up to like 200-300 cycles, but depends also on the frequency of use and how long it sits before the next use, as far as years between, not days. If anything, as a wiser adult, it has helped me know my safe limits. Definitely worth the money.
C**N
Fácil de usar y fiable
Una cerveza , 0,02. 2 cervezas 0,04. 3 cervezas, 0,06
R**R
Ethylotest s80
Très bonne qualité, seul inconvénient le mode d'emploie n'est pas en Français
S**Y
Drive with Confidence—A Must-Have for Safe, Responsible Driving!
The BACtrack S80 Professional Breathalyzer has been a game-changer for me. It’s so reassuring to know I can drive with confidence after a dinner or BBQ without relying on guesswork or counting drinks. Instead of risking my life and others by guessing my blood alcohol level, I now have accurate, reliable information at my fingertips. The device is easy to use, and the after-sales service for annual servicing has been excellent, ensuring my breathalyzer stays in top condition. If you value safety and responsibility, this is a must-have tool. Highly recommended!
J**E
exactly as described good
well packed arrived on time
A**L
aus cas ou je l'ai toujours dans ma voiture et cela me rassure
parfait rien a redire
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