While it may not be an accurate indicator - if you feel you might need to blow into one of these to tell if you can/should drive - DON'T DRIVE!!! - its not worth the cost - ot you if you get caught or to the others you might injureOriginally posted by: sjwaste
Haha, we had something similar in college. It was always WAY off, and we suspect, usually read low. Don't use one of these things to decide if you can drive.