Get the green light before you drive with the traffic light alcohol tester we all know the dangers of driving under the influence of alcohol but sometimes it can be hard to know if weve had just one drink too many to drive even the morning after is a risk even though you feel sober there may still be high levels of alcohol in your body that could put you over the limit this clever gadget gives you a quick and accurate reading of your blood alcohol content bac simply breathe into the dev