- High Precision Sensor: This alcohol tester features a high-precision chip and an advanced DFFA double filter algorithm, ensuring accurate readings. It quickly displays blood alcohol concentration (BAC) with a response time of under 5 seconds and an accuracy of ±0.005% BAC, helping you make informed decisions about driving. - Non-Contact Design: The blow test breathalyzer eliminates the need for a mouthpiece. Its built-in cleaning chamber effectively removes unwanted substances, allowing for precise alcohol concentration measurements. For best results, wait at least 20 minutes after drinking before testing. - User-Friendly Operation: Equipped with a high-capacity USB rechargeable lithium battery, this device offers extended usage on a single charge. Simply press the start button to initiate a 10-second warm-up countdown, then blow into the inhaler for 3-10 seconds. The three-color display provides clear and intuitive results. - Lightweight and Portable: Weighing only 80g and measuring 14cm x 2.6cm x 2.6cm, this breathalyzer is compact and easy to carry. Store it conveniently in your pocket, car, or backpack, making it ideal for home use, outdoor activities, parties, and events where you may need to test your alcohol level. - Practical Applications: Perfect for ensuring safety before driving after social gatherings, monitoring alcohol levels during camping trips, or providing peace of mind at festivals and carnivals. This device empowers you to make responsible choices regarding alcohol consumption.