Everything you need to know about the breathalyzer and the breathalyzer

alcohol and ethylmeter

According to data from the DGT, during 2017 they were produced in Spain 102,233 accidents of traffic with victims, in which 1,830 people lost their lives and more than 100 thousand were injured. The alarming fact is that the 42.1% of the drivers who died during the last academic year in our country gave positive results in alcohol, drugs and/or psychotropic drugs , so 4 of every 10 deceased drivers presented positive alcohol and/or illegal drug consumption.

Thus, for physical security purposes, the use of the breathalyzer test using specialized instruments such as the ethylometer > or the Breathalyzer is more than necessary to prevent and, therefore, reduce the number of fatalities in our country. But do we really know the differences between these two devices?

Before seeing and analyzing in detail the breathalyzer and the breathalyzer, remember some key aspects directly related to the devices:

The maximum breathalyzer rate allowed in exhaled air in Spain applies to drivers in general and cyclists with a 0'25 mg/l in exhaled air (0.5 g/l of alcohol in blood) and for professional drivers and novices : 0'15 mg/l in exhaled air (0.3 g/l of alcohol in blood).

Breathalyzer control

After a breathalyzer test, the driver has the following rights: the test twice with an intermediate time of at least 10 minutes, and if If you do not agree with the results obtained, you may request a blood test , which in case you test positive, you must carry the test costs.

If it is exceeded BAC, depending on the severity of the offense and the amount of alcohol intake of the subject, this can be punished with an administrative offense or treated as a criminal offense.

The ethylmeter and the breathalyzer, brothers but not twins

Both instruments are intended to measure the level or concentration of alcohol in the exhaled air through a disposable mouthpiece. These levels will be determined by the amount of alcohol that the subject has taken, either in fluid , liquid or gas solution. The key shared by these devices is their almost non-existent margin of error.

Although they are practically synonymous, we find some differences between one and the other. Let's see the differences. First, the Breathalyzer is that instrument used by traffic agents in the breathalyzer tests, ie the device that we blow from our vehicle and without leaving it. It's small and portable , with a digital screen and backlit.Once the first breathalyzer test has been carried out by the traffic agent, in order to be able to carry out the relevant report in case of having tested positive, it is necessary to carry out a second test. Here comes into play the ethylometer , a breathalyzer of greater precision .

An ethylometer is a kind of medium-sized fixed case that we will find in the crowded vans present in the breathalyzer controls, where we will perform the second breathalyzer test by blowing through a tube larger than the breathalyzer tube. This device will determine the rate of alcohol in the driver's breath.

The breathalyzer, in addition to performing the functions of the breathalyzer with greater precision and a minimum margin of error, includes a small printer

strong> which serves to provide a ticket with an information (blood alcohol level, driver's information, time and date) that would be attached to the complaint or to the court file as evidential evidence. That is, the importance of this impression is that it has documentary validity before a judge and that the agent attaches the complaint or the arrest of the driver in case of having tested positive.

Can the breathalyzer and the ethylometer fail?

Both instruments have very little margin for error. The accuracy of the models used by the traffic agents is very high, however its scope has only a indicative value or index .

Firstly, regarding the Breathalyzer, it has a margin of error of 7.5%. Let's take an example. If when blowing, the instrument marks 0.34 milligrams of alcohol per liter of air (0.34 mg/l), the exact measurement will be between 0.32 and 0.36, thus the minimum margin of error. This allows us a legal margin of appeal or repeat the test.

As for the ethylometer , its accuracy is greater than that of the breathalyzer , of a 5% . This is your relative error. If the blow marks 0.24 mg/l, the measurement will range between 0.23 and 0.25. The answer is yes.

Always in a preventive and informative way , we can carry and use a breathalyzer or portable breathalyzer with us to check our alcohol rate in exhaled air after some rods. Of course, the results of the agents' instruments will always be more valid than ours, because far from the fact that the former will practically always be more precise, we will never be able to use our device as proof or proof in our defense.

Let's see the three most reliable and safe ethylmeters that we can find in Amazon


Some true allies that can save us on more than one occasion


 Breathalyzer T1
  • Price: € 19.99 (shipping not included)
  • Buy it here
  • l> This portable digital breathalyzer with LCD display features advanced semi-conductor sensor technology, which guarantees a precise, reliable and instant result. It is compact and lightweight, easy to carry (11 cm x 6 cm x 2 cm) and works with 3 AAA 1.5 V batteries. Includes 4 disposable nozzles and a 24 month warranty.


    Beaudens Breathalyzer
    • Price: € 24.99 (shipping not included)
    • Buy it here

    [rehttps://amzn.to/2GzpuD9saltado]As well as the previous one, this breathalyzer with LCD screen features advanced semi-conductor sensor technology, giving us a fast, accurate and reliable result, which It will allow us to have an idea of ​​whether or not we should take the car after having drunk. It works with 2 AA batteries of 1.5 V, weighs 176 g and a size of 16 cm x 8 cm x 5 cm. It also includes disposable nozzles, 10 to be exact, and a 12-month warranty. [/Highlighted]


    B5 breathalyzer
    • Price: € 34.99 (free shipping)
    • Buy it here
    This latest breathalyzer is a more advanced version of the first one, so the technology is practically the same as the T1. Unlike the first one, it incorporates a 350 mAh lithium battery . In addition, it has an intelligent memory capable of storing the last 10 results of the test. It measures 12cm x 6.5 cm x 12.4 cm. It also includes 4 disposable nozzles and 24 months warranty from the day of purchase.

    The Honda breathalyzer

     Breathalyzer from Honda and Hitachi

    Prototype of portable alcohol detection device for Smart Keys of Honda vehicles

    Honda makes progress in safety matters.Any idea that can reduce traffic accidents linked to alcohol consumption is always welcome.

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