This breath alcohol tester is currently selling for$90 on sale, regularly$200. I have quit drinking, so no longer have any need for it. Mouthpiece has been sterilized and they are also available for cheap online.
With a semiconductor-oxide sensor this model provides your exact BAC not just a range on a digital display. This unit provides a BAC reading from 0.00 to 0.40 % BAC (5 times the limit of 0.08 BAC).