Examples from the Web for breathalyzer
She failed several field sobriety tests and a breathalyzer put her blood alcohol level at .11.The Tragic Decline of Mary Kennedy, Found Dead in Apparent Suicide|Michael Daly|May 17, 2012|DAILY BEAST
The source says a breathalyzer test measured 1.01mg of alcohol per liter of breath Galliano exhaled.John Galliano Suspended by Dior for Alleged Anti-Semitic Rant|Tracy McNicoll|February 25, 2011|DAILY BEAST
I was put in Central Lockup, given a breathalyzer test which I passed, but I spent the night in jail anyway.
But his license was suspended because he declined a Breathalyzer test.
Word Origin and History for breathalyzer
1960, from breath + (an)alyzer; an earlier name for it was drunkometer (1934).