Feature 1ACCURATE AND SENSITIVE: Breath alcohol tester is used to measure the alcohol concentration in the human body. 2MULTI FUNCTION: In addition, there are small LED lighting functions, timing and countdown functions. More convenient to use. 3AUTOMATIC SHUTDOWN: Digital alcohol tester will automatically turn off 5 seconds after completing the test to save battery power. 4EASY CARRYING: Comes with a small size and a light weight as well, this alcohol tester can be easily carried in your bag or your pocket for convenient use. 5WIDE APPLICATION: Breath alcohol tester has a wide range of uses, can be used by medical personnel and professional therapists, and is suitable for individuals, drivers, parties, and family gatherings, etc.Item Type: Breath Alcohol TesterMaterial: ABS Battery: 2 x 1.5V AAA battery (shipped without battery)3 LED Display:Less than 0.02% BAC (0.10mg/L BRAC), GreenOver 0.02% BAC (0.10mg/L BRAC), YellowOver 0.05% BAC (0.25mg/L BRAC), Yellow and Red .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Breath Alcohol Tester1 x Manual