Features 1、ACCURATE AND SENSITIVE: Breath alcohol tester is used to measure the alcohol concentration in the human body. 2、MULTI FUNCTION: In addition, there are small LED lighting functions, timing and countdown functions. More convenient to use. 3、AUTOMATIC SHUTDOWN: Digital alcohol tester will automatically turn off 5 seconds after completing the test to save battery power. 4、EASY 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. 5、WIDE 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. Specification Item Type: Breath Alcohol Tester Material: ABS Battery: 2 x 1.5V AAA battery (shipped without battery) 3 LED Display: Less than 0.02% BAC (0.10mg/L BRAC), Green Over 0.02% BAC (0.10mg/L BRAC), Yellow Over 0.05% BAC (0.25mg/L BRAC), Yellow and Red Package List 1 x Breath Alcohol Tester 1 x Manual