1、Accurate Detection: Equipped with high sensitivity semiconductor gas sensor, the alcohol tester can make accurate detection results. 2、Portable: The alcohol breath detector is easy to use with an alarm sound. It only takes 2 to 3 seconds to blow, and within 20 seconds your BAC results will be automatically displayed on the LED screen. 3、Reminding: When the portable alcohol tester runs out of power, it has a function of reminding you to replace the battery, to let you use it safely. 4、Wide Application: The alcohol detector is available for use by roadside law enforcement officers, medical personnel and professional therapists, as well as to detect yourself, friends and family, you can use it at car, home, etc. 5、LED Display: Equipped with LED high definition screen play, it is intuitive for you to view the detection results, and it is convenient for you to detect even at night. 1 x Alcohol Tester Item Type: Alcohol TesterMaterial: ABSWeight: Approx. 43g/ 1.52ozColor: As ShownSize: Approx. 10.9x4x 1.9cm/ 4.29x 1.57x 0.75inBattery: 2 AAA Dry Battery (Not Included)​