Digital Breathalyser Alcohol Tester - Version 3 This breath alcohol tester is used to measure concentration of the alcohol in human body. With sensitive semi-conductor sensor, this portable breathalyzer can quickly give a result to judge whether you can drive or not. Powered by 2 x AAA batteries (not included). This alcohol breathalyzer is space-saving, lightweight. It is easy to hold and carry. Pocket-size allows you take it anywhere and anytime, ensures your safe driving after drinking. This alcohol breathalyzer has a large LCD screen with orange background Light. It is convenient for you. Material: ABS Size: 102mm x 65mm x 25mm Color: Black