Feature:1. High Sensitivity: Alcohol detector is a kind of alcohol measuring instrument with high sensitivity and high accuracy. You can test before driving to avoid unnecessary trouble.2. and Sanitary: Accurate alcohol tester does not use traditional suction nozzles, it is and hygienic and can be used with confidence.3. 3 Status Lights: The portable alcohol detector has three status lights. The green light indicates no drinking, the yellow light indicates drunk driving, and the red light indicates drunk driving.4. Recycling and Durable: The alcoholic detector has a built in 200mAh lithium battery, which It can be recycled for 150 consecutive measurements.5. Small and Portable: The alcohol tester has a built in purification chamber and is small and portable, making it easy to use when going out.How to Use:Long press the power button to power on, preheat for 10S, and blow on the test port to test the alcohol content.Specification:Item Type: Portable Alcohol DetectorProduct Material: ABSWeight: Approx. 46g / 1.6ozBattery Parameters: Lithium Ion Battery (Included)Battery Capacity: 200mAhTest Range: 0.00 to 0.19%BAC(0 to 1.9g/l)Preheating Time: 10SBlowing Time: within 10S, More Than 4S RequiredResponse Time: Less Than 5SLighting Type: Green, Yellow, RedUse: Alcohol Detection Package List:1 x Portable Alcohol Detector1 x USB Charging Line1 x Manual