I picked one up awhile back, keep it in the car. It runs on 2 AA's and from what i can tell fairly accurate. Walgreens has them in the pharmacy for $40. Combined with good judgment this will hopefully keep me from ever getting myself into trouble from bad decision making. Its good to bring in places too to help decide if your going to have that last beer or when somebody shouts "round of shots on me". Drive safe folks.
What? I just love fuckin' around with the court system. Maybe next time I'll get lucky enough and they'll let me go to the penitentiary!