the drivers are often situations when you need to get behind the wheel and was already consumed alcohol. Breathalyzer will help you to quickly and accurately determine the number of ppm in several specific parameters, in particular, the type of alcohol consumed and its quantity. When determining the program uses Watson's formula and gives the most accurate data during the test. In addition, you can easily know when the alcohol level in the blood to drop to an acceptable level to start driving the car. This will help function alarm "Wake me up".