1、Accurate Reading: Portable breathalyzer adopts advanced high accuracy technology sensor will immediately provide you with the most accurate value. 2、LED Display: Digital breath alcohol tester features a high definition LED screen for intuitive display and easy observation at night. 3、Small and Portable: Digital alcohol breathalyzer is easy to carry, save space for you, you can put it in your pocket or bag. 4、Indicator Lights: Alcohol detector has 3 status lights. The green light indicates no drinking, the yellow light indicates drunk driving, and the red light indicates drunk driving. 5、Clean and Sanitary: Digital alcohol tester does not use traditional suction nozzles, it is clean and hygienic and can be used with confidence. 1 x Alcohol Tester (Battery Included)1 x Manual 1 x USB Power Cord  Item Type: Alcohol TesterMaterial: ABSWeight: Approx. 47g/ 1.7ozVoltage: 5VCurrent: 1ABattery: Li polymer 150mAh (Included)Measuring Range: 0- 0.95mg/LPreheat Time: 10 SecondsBlow Up Time: 10 Seconds