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BACtrack C6 Keychain Breathalyser $76.45 + $10 Postage @ Breathalysers Australia


In case you haven't heard, from May 20 NSW drink drivers who are first-time, lower-range offenders will receive an immediate three-month licence suspension and fine of $561 - https://www.abc.net.au/news/2019-05-06/nsw-announces-drug-dr....

I've had a number of breathalysers over the years, but this is my all time favourite. Super portable, and quick to use. And a 2018 model.
I found the guy (Will) selling them for the cheapest in Oz, and asked for an Ozbargain discount, which he kindly provided (15%).


Powered by BACtrack’s proprietary BluFire® fuel cell sensor technology, the all-new for 2018 BACtrack C6 Keychain Breathalyser is the smallest fuel cell sensor alcohol tester ever created! Roughly the size of a 9V battery and weighing only 56 grams, the C6 delivers reliable and accurate BAC results from a tiny, yet powerful package (0.005 @ 0.1% BAL, +/- 0.006 at 0.050 % BAC).

It uses advanced BluFire® Fuel Cell Sensor (Grade 8) - the same technology trusted by hospitals and clinics and offers the highest level of accuracy and consistency.

The C6 is the first BACtrack to offer the new “Dual-Mode” operation. Choose “Standalone Mode” and your BAC results are delivered directly to a bright, easy-to-read OLED screen. Alternatively, choose “App Mode” and the BACtrack C6 seamlessly pairs with your smartphone via Bluetooth. Using the free BACtrack App, you can quickly and easily estimate your BAC, track your results over time, and with ZeroLine®, estimate when your BAC will return to 0.00%.

Perfect for any social situation, from happy hour to dinner parties, the ultra-portable BACtrack C6 keychain breathalyser will help you and your friends drink smarter and make better decisions while drinking.

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Brathalysers Australia
Brathalysers Australia

closed Comments

  • +3

    Looks like a good price.. more certainty after Friday work drinks is a good thing…cheers..

  • +9

    How does ongoing calibration work in this?

    • +4

      reading the manual


      The BACtrack is calibrated during manufacture using advanced alcohol simulation equipment. Known alcohol concentrations are passed through the sensor to set baseline values for testing. During testing, the unit compares breath samples to these baseline values. The accuracy of breath alcohol testers can fluctuate after six to twelve months of normal use depending on the number of tests performed and operating conditions.
      If this product is providing inconsistent test results, is not providing any test results, or provides unusually high or low test results, the product should be recalibrated immediately by a trained professional.
      The product should be recalibrated at least every six to twelve months. If the product is used every day, it may need to be recalibrated as frequently as every month.


      Please visit www.bactrack.com/calibration or call 877.334.6876 for information on how to get your BACtrack recalibrated. During recalibration, a professional technician will reset the sensor baseline values and also perform a full diagnostic check to ensure the accuracy and reliability of the product.

      • +1

        Gonna guess that service costs twice what the unit does..

        • +8

          Breathalysers AU

          For electrochemical fuel cell sensors; BACtrack S80 Pro, BACtrack Mobile Pro, and BACtrack Trace Pro the cost is $55 inc GST. This also includes airway servicing and the pickup and return courier to and from Newcastle, NSW.

          not that i am endorsing - just curious myself

  • +14

    Don't drink.. save money on alcohol and this thing.

    • +18

      You're lucky you only got two negative votes. This is Strayaaaaaaaaaa maaaaaate

    • +16

      Or drink, but don't drive…

      • +1

        Love the life of a p plater
        It really is as simple as, if I’ve had anything to drink, I won’t be driving for a while

        • +1

          What about the next morning. How do you know after a big night when you're right to drive.
          When you own a breatho the results are extremely surprising. No wonder the cops get more people at booze buses in the morning than at night.

          • +9

            @Skurfer: Well for me personally, I leave it what seems like a stupid amount of time after I’ve been drinking.

            But I completely understand what you’re saying.
            And I’m curious how I handle alcohol myself. Which is why I’m looking at buying one of these.

            But I still think my point stands.
            If you’re in even a shred of doubt, you don’t drive.
            It’s not worth other people’s lives.

    • +1

      Use "WAZE" and remember to show the location of RBT for your local ozbg'ers.

      • +1

        Frankly, this booze test is one thing I couldn’t agree more.
        Let’s say someone does tag Booze Bus on Waze only to find later the DRUNK DRIVERS’ traffic diverted to somewhere else where someone known to him get hit on that route. Wd he still feel happy about helping OzBargainers or Shd be ashamed for this? Conscience?
        For me, I drink. But I never drive then.

  • +3

    If you want, you can calculate this out yourself. Issue is you may not be plugging in the right figures after a few drinks…


    • +4

      If you're too drunk for basic maths you're too drunk to drive for sure.

    • Hmm not sure that site is helpful.

      I've always gone with 2 STD drinks first hour and one an hour after that and I'll be borderline. That's telling me based my profile that I can have alot more and still drive .. Hmm

      • It obviously varies greatly on body mass. I can drink a six pack at a party and be back on zero when we leave, but my partner would be unconcious.

  • I would but one but their pages terms and conditions don't work so I have no idea what they are. Can't say I have read them if I can't see them. Not going to buy today.

  • +1

    Accuracy is everything when buying these devices.

    The product website quotes an accuracy of 0.005 @ 0.1% BAL.
    That isn’t a really useful figure. An accuracy recorded at 0.00, 0.02, and 0.05 BAL would be a better indicator of how useful this device is.
    If you are already around the 0.1% BAL what difference does an accuracy of 0.005 make? You are already well over the limit.

    My guess is the accruancy is poorer at the lower BALs. I wouldn’t spend that much money on something you can’t be certain of.

    • +1

      From my research, it is one of the most accurate on the market.

      "As you can see, the test results of the BACtrack Mobile Pro closely mirror the DataMaster, especially at levels under 0.08% BAC."

      • That’s not a proper comparison tests, that’s more of a marketing test. That graph with the heavy line weights doesn’t tell you much. What is needed is some p-values to determine if the difference is statistically significant.

        The terms and conditions of the device pretty much tell you not to rely on the device.

        • +1

          I and about 10 members of my Beefsteak and Burgundy club have one.
          We all think its great.
          It does give consistent readings if you re-test yourself.

          • @lonepine: Consistent readings don't mean much if they are consistent but inaccurate.

            The manufacturer claims accuracy of 0.005 @ 0.1% BAL which is not very helpful because 0.095 and 0.105 both tell you that you shouldn't drive.

            If the accuracy is 0.02 @ 0.05% BAL then the device is useless because it might tell you that you are 0.038% when you are actually 0.058%.

            Even an accuracy of 0.005 @ 0.05% BAL is not very helpful because it might read 0.045% when you are really 0.05% so you might drive and lose your licence.

            It is better than guessing but it is not perfect and you need to assume that it is most accurate at 0.1% BAC.

        • +1

          The terms and conditions of the device pretty much tell you not to rely on the device.

          They need to tell you that, and all devices will tell you that.

          Once you buy it the manufacturer has no control on what you do with it, how often it is used and how often it is calibrated.

          They also need to tell you not to rely on it because they don't want you suing them if there is a difference between their device and the one the police use for evidence.

          • +1

            @spaceflight: A blood test is the gold standard.
            Next is a well calibrated police breathalyser.
            Next is their most expensive version.
            Then this.
            It ain't useless: if you need to drink and drive, and if it saves your license/job/$500 because it tells you that you are higher than u thought, it is worth it.

            • @lonepine:

              Next is their most expensive version.
              Then this.

              I think the next best would be one that meets Australian Standards AS3547 like these ones.

              The ones in this deal don't seem to.

              because it tells you that you are higher than u thought, it is worth it.

              And what about an it tells you lower than what you actually are like I said above and you lose your licence/job/$500?

              • @spaceflight: Still ± 0.005% BAC and starting at 3 times the price.

                Do you use one of them?
                Why don't u post it as a bargain?

                They all have a margin for error.

                So I blow 0.045; Am I safe. Probably, but not worth the risk.
                I blow 0.035 - I can drive!

                • @lonepine:

                  Still ± 0.005% BAC and starting at 3 times the price.

                  No it's not the same. It is ±0.005% BAC at 0.050% BAC which is much more useful than at 0.1% BAC

                  Do you use one of them?

                  No because I'll use public transport or taxis if I need to move when I have been drinking.

                  I blow 0.035 - I can drive!

                  How do you know when they only give you an accuracy level at 0.1% BAC

                  You have no idea what a 0.035% actually means because you don't know how accurate it is at that level.

                  If you have one that's ±0.005% BAC at 0.050% BAC you can be more confident that it is correct because 0.035% BAC is closer to the accuracy measurement point.

  • This one or BACtrack S80 Pro?

    • Probably more accurate (+/- 0.005 at 0.050% BAC) but $100 more, and less portable.

  • +1

    How would you know how accurate this machine is if you don't have the one police use to compare?

    • +7

      Easy, have a few drinks then find yourself a booze bus.

      • actually would probably work.

  • +1

    I think people are missing the point with things - it's a toy, an icebreaker at parties to see who's the drunkest - NOT a device to see if you're 0.04 or 0.06.

    • Not a toy, a guide.
      If you need to drink and drive, helps you decide if you can legally.
      Trying to calculate with web guides and formulas is very inaccurate.

      This is +/- 0.006 at 0.050 % BAC, but should wait 20mins (otherwise it might read higher).

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