USB Rechargeable Portable Digital Alcohol Tester

The content discusses the importance of waiting 20 minutes after drinking before using an alcohol breathalyzer to ensure accurate results. This is because it takes about 20 minutes for the body to absorb alcohol into the bloodstream. Testing immediately after drinking may only show the alcohol concentration in the mouth, rather than in the blood. After waiting 20 minutes, the test should be conducted and then another 3 minutes should be waited before starting the next test to ensure accuracy. The alcohol breathalyzer features auto-calibration and a sensor fault self-checking system, making it easy to use. It also has a built-in rechargeable lithium battery and a 1-meter micro USB charging cable. The device allows for alcohol testing 800-1000 times and has a fast response time of 3-5 seconds.