It often happens that a bit of drinking, it's been quite a while and you need to go somewhere urgently. The question arises whether it is possible to drive, whether the alcohol has been eliminated from the body, or whether it is better to call a cab. Only a specialized device - a breathalyzer - will be able to give you an accurate answer. To measure the level of alcohol in the blood you need to blow into a tube and the device will display accurate digital readings on the screen. Knowing the norm allowed by the legislation it will be possible to determine whether you are allowed to drive a vehicle. The display has a red backlight, the device runs on batteries and comes with 5 interchangeable mouthpieces.