Robustt Alcohol Tester Black Advance Digital LCD Display Portable Breathalyzer with 5 Mouthpieces Model-1 (Pack of 10), The professional alcohol concentration tester uses an advanced semiconductor sensor to ensure an accurate result in a short time. Conveniently designed for measuring BAC. A simple method to analyze blood alcohol concentration at any time and anywhere. It's easy to carry. Digital alcohol tester with audible alertThis alcohol tester is very convenient to use. Just plug in three AAA batteries (not included), turn on the power, and start the test.It comes with extra 5 mouthpieces that you can easily share with your family and friends.It is very portable and light in weight. It is easy to put in a pocket, hang on the key chain, or put in the car for easy carrying. The performance is very stable, and the test results are displayed on the LCD screen with a light blue backup. Even in a dark environment, the results can be seen clearlyIt has an advanced flat-surfaced alcohol sensor that can respond quickly. The alcohol tester is designed to save power and indicate low voltage. After the test, it will automatically sleep for 5 seconds.

• Battery Saved Design