Description: High-precision detection: With excellent sensing technology, it can accurately measure the alcohol content in human exhaled gas, providing a reliable basis for drunk driving judgment, with extremely small errors, making the test results trustworthy. Non-contact blowing: Using advanced blowing detection method, there is no need for direct contact with the tester, which is both hygienic and convenient, effectively avoiding the risk of cross-infection, while improving the detection efficiency, and the use of scenarios is more extensive. Three-color indicator warning: equipped with three distinct detection indicator lights of red, yellow and green, which can clearly display the drinking status. The red light is drunk driving, the yellow light indicates drunk driving, and the green light indicates no drinking, allowing users and law enforcement officers to quickly and intuitively judge the results without complicated interpretation. Voice broadcast: The considerate voice broadcast design automatically and clearly broadcasts the alcohol content and the corresponding drinking status information after the test is completed. Whether in a noisy environment or for people with poor eyesight, you can easily know the test results, which is convenient and practical. USB charging: Built-in high-performance lithium battery, support USB charging method, get rid of the trouble of frequent replacement of traditional batteries. It can be charged anytime and anywhere to ensure that the alcohol tester is always on standby and has no worries about battery life. It is extremely convenient for long-term law enforcement work or daily personal use. Specifications: name: High Precision Alcohol Tester Color: Black Material: ABS+PC Testing range: 0.00~0.19%BAC(0~1.9g/l) Blowing time: 10s(normally >4s) Reaction time: <5s Pre-heating time: 10s Power request: DC 5V/1A Power supply: Built-in 200mAh 3.7V rechargeable polymer lithium battery Using time: 150 times for one fully charging 3 colors display: Green for safety. Yellow for drinking. Red for drunk Product sizes: 28*15.3*96.7mm Package includes: 1 x Alcohol Tester 1 x Charging Cable 1 x User Manual