I didn't buy this unit until it was to late. I did not think I was drunk. The cops breathalyzer said I was. Heard about in jail. Great item if you drink then drive.
This breathalyzer is usually spot on. Sometimes using it right after drinking can throw it off but if you wait a few minutes its very accurate. Always helps me confirm when it is ok to drive home after drinking.
I bought this for personal use. My boyfriend came over drunk and he said he wasn't drinking, well he blew a .16. I told him he was over the legal limit and got mad and left. Well long story short, He got arrested for a DWI. I love this product and would recommend it to everybody!!
Recommended by a friend, decided to buy. You can use it professionally to measure yourself to help you make a better decision or you can play around with your friends at the bar. Just dont forget to use it when you need it and keep it in your car!