By make and model
The AlcoMate Prestige measures about five inches tall, making it a bit too large to carry around in pocket or purse, but a good size to keep in a car's console or glovebox.
The AlcoMate Prestige is a breath-based blood alcohol level tester.
The AlcoMate Prestige comes with replaceable nozzles, a sanitary means of blowing into it to run its test.
The monochrome display shows a countdown while the device warms up, which can take up to 2 minutes.
Two AA batteries power the AlcoMate Prestige, and the breath sensor is replaceable, extending the entire device's use.
The blood alcohol limit for driving is 0.08 in every state of the US, and the AlcoMate Prestige can tell if you are over that level.