1、LARGE SCREEN DISPLAY: The alcohol tester is equipped with a large screen display. Users can see the test results clearly and intuitively, which is convenient and improves user experience. 2、HIGH ACCURACY: Equipped with the third generation ASIC chip, it has higher accuracy, 50% more accurate than the previous generation, and can reliably detect the alcohol content. 3、PURIFICATION CHAMBER: Built in purification chamber, using secondary gasification and scientific filtration technology, can eliminate impurities, leaving only alcohol, to ensure the accuracy of the test results. 4、SMART VOICE: It is equipped with smart voice function, which can announce the test result by voice and immediately prompt the user whether he or she is in the state of drunk driving. 5、COMPACT AND PORTABLE: The alcohol tester is exquisite and compact, easy to carry and store. The miniature and compact design allows users to test anytime and anywhere, convenient and practical.