This portable digital alcohol level breathalyser could save someones lifer avoid driving under the influence with this handy gadgetr prevent any trouble with the law and accidents on the roadsr digital tester has an audible alert and an lcd display to tell you your blood alcohol levelr range 000019 bac and 0019 glr features auto power off function to save energyr keyring chain makes it easy to take everywherer includes multiple mouthpiecesr requires 2