The BACtrack SingleShot 0.08 %BAC tester is perfect for measuring increased levels of alcohol intoxication. The SingleShot is based on indicator chemistry that changes color in the presence of breath that contains alcohol. It is laboratory calibrated to turn positive at or above a specific level of alcohol in the breath. Simply squeeze the center of the tube to activate the test, and blow through the SingleShot. Based on your Blood Alcohol Content (BAC), the crystals will either stay yellow indicating a negative result or change to blue/green, indicating a positive result. For example, the SingleShot .08% will indicate "positive" by changing color when the user's alcohol level is at or above 0.08 %BAC.

Features include:

•Crystals change color from yellow to blue-green when alcohol level is at or above 0.08 %BAC
•Provides fast and accurate results that are trusted by professionals
•A simple pinch activates the SingleShot indicator crystals–no warm up time necessary
•Smallest disposable alcohol tester available - less than 3 inches long and easy to store in a pocket, purse, or car glove compartment
•510(k) Cleared by the U.S. Food & Drug Administration and Approved by the U.S. Department of Transportation as an Alcohol Screening Device