Breathalyzer Keychain Car Gadget - Flashlight + Stopwatch. New mini-breathalyzer that fits right on your keychain!
This mini breathalyzer - Blood Alcohol level tester - has a traffic light readout style system making it super easy to use. Simply blow for 5 seconds then wait. A green indicating light and you are good to go; yellow and you may want to wait a while before you go home; while red indicates you should hand your keys to a friend. This is a great reference tool for checking if you have had just a little too much to drink.
How to Use :
Insert 2 AAA batteries into the unit. Press the Power button until the Red/Yellow lights extinguish and only the Green light is lit. This can take about 10 - 15 seconds. Just make sure that you do this away from your face in case you have imbibed alcohol so that the results are not skewed. Once the green light stays on, blow directly into the small grill at the top of the device. Blow normally.
Continue to blow your breath for about 10 seconds. Now it will indicate your Blood Alcohol level : - Red indicates your Blood Alcohol Level is above the legal limit. Yellow indicates that it is not safe to drive. A green light indicates your blood alcohol level is within the permissible limits.