“I am a college student who got this to try to do research on the affects of different alcohol on myself. It does not work it either shows up as 0 or .13 every time and has been a horrible investment, save your money”
“Should have listened to the other reviews. I opened the product and tried it out completely sober and I blew .01. Ok not bad I figured there would be an error rate. So I drank quite a bit that same night and blew again and it came back at .00. The device never got over .01 and that was only when I had no alcohol in my system. Do not buy this product”
“I don't know if this thing works. It seems to read very low. My friend had seven drinks, waited 20 minutes and tested it. It read that he was legal to drive. There's no way to see if it's accurate”
“Upon receiving this keychain breathalyzer, I brought it to a friend's house to compare with their BacTrack S80 professional breathalyzer. Several repeated tests with both devices and multiple people confirmed that the keychain device was measuring at about half the BAC as the professional-grade device. In other words, this keychain breathalyzer would indicate 0.012 and the S80 would read 0.024. It seemed pretty consistent, at least, but the notion that it should need to be calibrated immediately upon buying it is ridiculous.”