Ultra-high performanceUltra-high precisionHigh quality: The alcohol detector has a built-in highly sensitive semiconductor sensor. After turning on the power, it automatically removes excess air to ensure correct detection in a short time.Improved USB rechargeable: Using an upgraded second-generation large-capacity lithium battery, the previous battery power supply is cut off and the life is long. It can be used about 300 times on a single charge. (Note: It cannot be used normally due to insufficient power. Please charge it first when using it for the first time. )Non-contact: Just blow and measure the air! Non-contact breathing, just blow the alcohol tester to easily measure! No mouse protection is used, which is very convenient, hygienic and safe. Before driving, drinking and driving, or the morning after a party, actively participate in various occasions such as preventing pouring.Easy operation: The measurement preparation time is within 10~20 seconds, and the measurement time is within 5 seconds. The light can not only display the numerical value, but also can see 3 colors of red, yellow and green at a glance. In addition, if you have an opinion, the alcohol detector will sound an alarm.Driving NecessitiesTo ensure safety, please pass this alcohol test before driving! Safety is the most important thing, and you should have a convenient alcohol tester. It is very suitable as a gift for father, friends, colleagues, boyfriends or a necessity for the automotive transportation related industry.