1. Professional Alcohol Tester: Our breathalyser features a high-precision semiconductor alcohol sensor, providing swift and reliable results on your ability to drive. With a testing accuracy of up to 99%, it covers a blood alcohol concentration (BAC) range of 0.000 to 0.199%. Note: For optimal results, wait at least 20 minutes after drinking to allow the alcohol to be absorbed into the bloodstream. 2. Non-contact Testing: This breathalyser eliminates the need for disposable mouthpieces. Its advanced sensor includes a cleaning chamber that effectively filters out impurities, ensuring you only measure alcohol levels. Accuracy is maintained within ± 0.005% BAC. 3. Color LCD Display: The device features a clear three-color block and digital display for easy reading of test results. The updated model includes a memory function capable of storing up to 50 previous test results for convenient tracking. 4. User-Friendly Design: Enjoy USB charging with a high-capacity lithium battery, allowing extended use after a full charge. Simply turn on the device, wait 10 seconds for warm-up, and then blow for 3 to 10 seconds. Your results will be available on the LCD screen in just 5 seconds. Use Scenarios: - Perfect for individuals who want to responsibly assess their alcohol levels after social events or gatherings. - Ideal for professionals who need to verify their sobriety before driving or operating machinery. - A practical tool for party hosts to help ensure guests can safely enjoy their evening without the risk of impaired driving.