Unfortunately, Intelligence quotient doesn't directly correspond to driving ability or driving etiquette
Well said WLUDavid. I never exceed more than a beer an hour (food and h2o alternations always) and never more than 3 beers a night, but at 130lbs body weight, that may still be too much. It scares hell out of me also, and that's why I inquire.
So, can some of the factors which make them inaccurate be lessened, like waiting half an hour or more after last drink to test and waiting for several clear tests before driving, or are they still too inaccurate? If not, Dueller, can anyone purchase the Portable Hand Held such as yours? Checking Ebay now.