This PreScreen Plus Alcohol Saliva Test covers every area needed to determine an alcohol level. This alcohol saliva test goes beyond measuring the alcohol from a person’s breath and pulls directly from the source, human saliva. This saliva test uses a highly sensitive detection method that can deliver test results within 2 minutes. The detection is displayed through a simple and easy color changing indicator. There are 5 different levels that the alcohol level can be detected (.00%, .04%, .08%,.15% and .30%). The small, individual packaging is great for transporting and easy to handle. This alcohol test has a 12-month shelf life.