BACtrack C8 Breathalyser, Professional-Grade Accuracy, Optional Wireless Smartphone Connectivity, Compatible w/Apple iPhone, Google & Samsung Android Devices, Apple HealthKit Integration

I bought this breathalyzer so that I could feel confident the next day when driving after a night of drink. It has also become useful as my teenage daughter has gotten to that age and puts my mind at ease when needed. I've used it both with the app and they stand alone use. Very handy to be able to have both. I would highly recommend it. I feel confident in its results. Point to note.. no food or drink for half an hour before testing to get the most accurate results.

Really good. App is easy to use and seems pretty accurate. We’ve tested it with several people and kept track of what each of us have drank and it matches the amount of units very closely. Obviously I wouldn’t recommend using anything if the law depends on you being sober but this is very good for everything else.

I think a lot of people don't realise that after a night out they are in fact over the limit in the morning. We bought this item for just that reason and frankly it's an eye opener. We have had other types of breathalyser but this so far has been the best. This has been so good that we have changed the way we drink if we are driving the following day. All good and everyone safe, happy days.

Used for first time on Christmas night out after four alcoholic drinks and C8 device gave reading of 0%. Got a colleague who had consumed more alcohol to try and they got 0% test result. Not fit for purpose as bought to ensure I am safe to drive and readings are way off.

Great little device with excellent readngs

Tried and tested, it was so complicated understanding what the measurements mean but finally. IN CLEAR ENGLISH. 0.035 or UNDER you can legally drive in UK 0.036 or over eg. 0.04 your over the legal limit. 0.035 is approx 3.5 alcohol units and you get rid of approx 1 unit per hour but if your a heavy/regular drinker that's quicker

Of course you'll never know how accurate any of these things are without comparing to a genuine police spec breathalyser, and so I intend to follow the advice of not driving unless it shows 0.00. But this seems believable in terms of BAC increase per drink. Bought after my AlcoDigital 7000 went thoroughly unreliable, in spite of the sensor being nowhere near its use limits. It will happily tell me I'm 6 times the legal drink-drive limit after 2 beers. The Bactrack on the other hand registers me as approaching the (England) limit when compared side by side. Buying as a 'morning after' device (I wouldn't drink past the limit and drive the same day) the hours until sober feature is a real boon. I feel it allows me to make an educated decision on whether I can have one more drink tonight. It seems to be pretty linear. If you test 2 hours after it said 4 hours remaining, it'll say about 2. I went for the model that works fully (including hours until sober display) without the app. Worth the extra £20 in my opinion, as that's how I prefer to use the device.

I was very impressed with this , you have to get used to it .

Love it ! Works great and accurate . Nice and compact

Solo espera 20 minutos después de un alimento, bebida o cigarro para que el aparato de una medición precisa, no lo he usado con el celular ya que no es necesario a no ser que quieras tener un seguimiento de tu actividad alcohólica :3

Compact and useful for my teenager who has just come of drinking age. A great tool to keep him safe and help him make the right decision when driving (ie not to when he's over).

A priori está siendo bastante preciso. Las medidas corresponden con lo esperado en función del alcohol ingerido en cada caso. el aparato es muy pequeño y podría perderse, pero es cómodo de llevar encima. se usa con o sin conectar al móvil, pero hay que cambiar cada vez el modo antes de empezar. es mas sencillo usar directamente que con App y la pantalla da el valor de alcohol en aire espirado, horas hasta 0% y algún mensaje adicional.

Very accurate, small sample and quick results that match professional/legal devices. worth every single dollar. know before you drive with confidence