Features:

• Quick and accurate test results with a simple one-button operation
• Electronic airflow sensor to ensure a deep lung sample for testing
• 0.000 - 0.400% BAC (blood alcohol concentration)
• +/- 0.01% at 0.02% B.A.C. sensor accuracy
• Semicoductor sensor with 2 digit display for accuracy

Editor Reviews:

Product Description:
Quick and accurate test results with a simple one-button operation Electronic airflow sensor to ensure a deep lung sample for testing 0.000 - 0.400% BAC (blood alcohol concentration) +/- 0.01% at 0.02% B.A.C. sensor accuracy Semicoductor sensor with 2 digit display for accuracy Includes 2 AA batteries, mesh carrying case and 5 mouth pieces

Rating : - Don't drink and drive without one!
My husband has had 3 DUI's and lost his privilege to drive. Which is a good thing! No one needs people like him driving around. Unfortunately for us, we now have to drive him to work, back home and everywhere else. He is supposed to be alcohol free at all times. He lied to me too many times so I got this to keep him honest. We use this every day to keep him from playing games. It works really well!