Worried that Uncle John might be hitting the Night Train a little too hard this holiday season? Well, now you can keep a closer eye on him, and avoid that lawsuit when he crashes into that parked cop car. Sure, breathalyzer technology has been around for years. So have portable versions.
Have you an opinion, used or been to this object or place? Tell us what you like don't like about it, or post any specs/info about it:
