What do you think is it? A timer? If you think so, we are sorry that you properly not right. Actually, this is an LCD Alcohol Tester Breathalyzer.This Alcohol Breath Tester with LCD screen and noncontact expiring design is compact and lightweight. So this Digital Alcohol Detector is pretty easy for carrying and convenient for using. Isn't it hard to gauge on your own when wondering if you are too intoxicated to drive after a party? How much is too much? No worries at all. This LCD Alcohol Tester Breathalyzer will tell you. This personal LCD Alcohol Tester Breathalyzer measures your blood alcohol level via a breath test anytime you need to know if you've crossed the line between safe and not safe. Numbers will be shown on the LCD screen so that you can judge by analyzing the numbers. And if the alcohol content of tested expiring gas is out of range, this LCD Alcohol Tester Breathalyzer will automatically gives out audible alert. Pretty useful as it is, such an LCD Alcohol Tester Breathalyzer is a really a good gift for yourself or anyone else you cares!