“I'm very careful about keeping track of what I have had to drink to make sure that I am not at risk for a DUI. I decided to invest in this device as an added layer of protection - to make sure my mental math is correct. It is easy to use and appears to be quite accurate.”
“It only worked for 1 year, now gives say 0.00 when I'm clearly drunk. I know because I have breathalyzer in my car. I've changed batteries and am unsure why it wont work. Only used 65 times total. Save your money.”
“I bought this one after owning the keychain for 8 months. This one is way more accurate, more than .02 times accurate than the keychain. Worth the money. On the keychain you will blow .02 times higher than the pro.”