Better to be safe than sorry after you've had a few drinks!  Keep this portable Digital Alcohol Tester in your car or purse so you'll always know how close you are to the legal limit.  The tester is easy to use and will give a quick and accurate reading. It can detect a range of 0.00~0.19% BAC & 0.0~1.9g/l. Includes disposable caps for a more sanitary use of this product.    **Note: Not a replacement for common sense, also DWI and DUI are serious offenses and we in no way encourage the user to participate in those actions.**