“I carry this every weekend when I plan to drink so I can check my BAC before I plan to drink. I already got a DUI a few years ago and don't plan to get another one as long as I have this as my helper.”
“Had fun using it at the Super Bowl party. I can't say how accurate it is, but one very drunk person blew very high and I only had two glasses of wine and blew below the legal limit. So I assume it's somewhat accurate. The beeper could be a little louder because no one could hear when it was time to blow. And this was just in a regular house setting - not a noisy bar. So, you just have to do as the instructions say and get ready to blow at "2". I like it and continue to carry it on my key chain. Would recommend.”
“I ended up sending this unit back to the manufacturer and they gave me credit for an S30. The keychain unit rarely worked and often gave an error message, even when I tried using it completely sober and following instructions.”
