The Maxkon 5-in-1 Digital Breathanalyser is the perfect companion for responsible drivers who want to enjoy a drink. Forget about guessing if it is ok to drive after drinking simply exhale to this breathanalyser to indicate your Blood Alcohol Concentration BAC before you drive. "Caution" alert would be displayed if BAC level is between 0.02 to 0.05 and "Danger" alert applies if its equal or higher than 0.05. With a dual LCD display and audible alert this is a non-contact fast response reusable Breathanalyser that has multifunction. It has a built-in clock alarm and a countdown timer that may become useful to avoid parking fine. It also has a built-in thermometer and a hand harness so you can carry this light and small Breathanalyster with you everywhere.... » read more