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What is the difference between different breathalysers?

There are a number of things that you as a consumer should be particularly aware of when looking for a good breathalyser.
  • Does the reading depend on how I blow? Small breathalysers without sampling systems usually display an incorrect reading if you blow hard or softly.
  • Does the breathalyser use a mouthpiece? A breathalyser without a mouthpiece can only provide a rough indication, as the surrounding air mixes in with the exhaled air before it reaches the breathalyser.
  • Does the breathalyser use measurement technology that is not sensitive to interfering substances such as cigarette smoke?
  • Is the breathalyser stable within the calibration range specified by the supplier?

Aside from purely technical aspects, are there any criteria that usually give a good indication of the quality of the breathalyser?

  • Is the supplier established, with products recognised as being of high quality?
  • Does the product's data sheet of measurement accuracy look reliable, or is it a copy from another recognised supplier?
  • Are there any reliable Swedish references?
  • Does the breathalyser look like a quality instrument? If it looks like an amusing gimmick, unfortunately that's usually because that's all it is.

Can you rely on all breathalysers?

Many breathalysers are currently marketed as using "the same measurement technology as the police".
No, we believe that by no means all breathalysers on sale are up to standard.
We always recommend you choose an Original breathalyser to meet your own needs, and that there are reference tests available to prove good quality.
The breathalysers we sell are carefully selected, are of high quality and have good test values. It is also important that you choose a supplier that offers complete guarantees.

What is the maximum value that the breathalysers display?

Good breathalysers should display up to 4.00‰.
At an alcohol content of 4.00‰ or higher, most people's lives are at risk from acute alcohol poisoning.
Be careful not to blow high concentrations of alcohol into the sensor immediately after having consumed alcohol, as this can damage the sensor. Always wait at least 20 minutes before performing a test.

What are the alcohol limits for driving a car?

In Sweden, the limit is 0.2‰ for drunken driving and 1.0 ‰ for extreme drunken driving.
A new Swedish act on drunken driving came into force on 1 January 2010.
If a person has more than 0.2‰ in their exhaled air, the verdict is drunken driving and they lose their driving licence for at least one year. If the verdict is extreme drunken driving, the licence is revoked for at least two years.

What does the police's breathalyser show at a roadside check?

In order to avoid a discussion with the road user at the roadside, the police have chosen only to display red or green. If a test is positive, the person then has to blow into another breathalyser at the police station or provide a blood sample, from which the precise alcohol content can be discerned.

Do all breathalysers notice whether you're blowing insufficiently or with interruptions?

No, but the volume and how you blow are extremely important parameters in achieving a correct result. In order to be easy to use, good breathalysers are insensitive to how you blow – hard, softly, etc. The important parameter for measurement accuracy is that there is a constant exhalation.

Is the breathalyser damaged by cigarette smoke?

More basic breathalysers will provide an incorrect result for alcohol after you have smoked; this is not the case with a good breathalyser. You should not, however, blow smoke directly into the breathalyser, as the sensor can sustain damage.

Do you need to change the mouthpiece after every test?

You can use the same mouthpiece, although we do recommend that you replace it regularly for reasons of hygiene. However, if you blow a large number of times you can generate a lot of condensation/residue in the mouthpiece, in which case you should replace it or rinse it vigorously.

Can I damage the breathalyser if I blow into it immediately after consuming alcohol or when I am very drunk?

Yes, you can seriously damage the breathalyser if your concentrations are too high when you blow.
You should absolutely avoid blowing immediately after drinking spirits (within 20 minutes). As the blood level is per thousand parts and spirit is a percentage, very high concentrations are created and the content often exceeds 10‰, which is absolutely impossible to achieve in the "normal" way. This damages the sensor, as it is not designed for this.
You also obtain a reading that is far too high and does not correspond to your blood alcohol content. If you wait at least 20 minutes, you achieve a correct value and you do not risk damaging the sensor.

What level of accuracy should there be in a good breathalyser?

The police use Dräger, which has a maximum deviation of +/-0.05‰.
Our breathalysers have a minimum accuracy of +/-0.1%, which provides a very good indication of whether you are above the limit of 0.2‰.
This means in practice that if the instrument shows a reading of 0.2‰, you are normally within 0.19-0.25‰.
You should absolutely not use your breathalyser to test your limits, but simply avoid driving a car, etc. until you are completely sober!


What does it cost to calibrate a breathalyser?

The breathalysers we sell with a fuel cell must be sent to us for calibration, which costs SEK 368.

How many tests can be performed within a calibration interval?

Most good breathalysers have an indicator to show when calibration is needed; the figure is from 200-300 tests, or in exceptional cases up to 1,000 tests. A breathalyser should always be calibrated after at least 12 months. The police calibrate their breathalysers every three months to be on the safe side.

How much accuracy do breathalysers lose if they are not calibrated?

Typically 0.6% of the measured value per month.
We do, however, strongly recommend that you calibrate or replace the sensor when the breathalyser indicates that this is required.
We are unable to guarantee its operation after this.

Order & Delivery

How do I place an order?

The easiest way is to order your breathalyser online right here on our website.
If you have any questions or want to order by phone, just give us a call: +46 (0)90 12 64 00. We would be delighted to help you to choose a good breathalyser to meet your own specific needs. We are open all weekdays, 08:00-17:00.

How long is the expected delivery time?

Once we have received, packed and secured your order, we deliver by post.