Pocket Breathalyzer

“Are you a color blind man, Fiddler? Can you tell the difference between green and orange? ”

It is clear that it is better not to drink at all and it is also clear that it does not always work. So, let's say yesterday on Sunday, we ... khe-khe, and today in the morning you can be behind the wheel or better on the subway? To help with the answer to this question should Keyring Alcohol Breath Tester. In order to figure out how to get to work, in the morning it's enough to breathe in this key chain. If the green light is on - the blood alcohol level is less than 5 ppm, if the yellow light is 5 to 8 ppm, it is better to go by transport, well, and the red light means more than 8 ppm and possible time off.
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The tester is powered by two AAA batteries, measures 7x4x3 centimeters and is sold here for 8 British pounds.