Breathalyzer, High-Accuracy Professional Tester with 10 Mouthpieces, LCD Digital Display Tester for Personal and Professional Use

Easy to use: Prepare two AA batteries in advance, turn on the power button of the tester, wait 15 seconds for the warm-up time, then blow evenly for 3-5 seconds, the result will be displayed on the LCD screen within 5 seconds., High Accuracy: This breathalyzer uses a high-precision semiconductor sensor to monitor your blood level to ensure you can drive responsibly;, Sound warning and color distinction: After using the tester, when the test result is less than 0.08% BAC, the green LED light is on, and there are 3 short beeps;, Measurement range: The measurement range is 0.00-0.20% BAC. The test result reaches the maximum value (0.20% BAC), and the value will not increase. Even if the amount of drinking increases, the test result still shows 0.20% BAC;, What you will get: 1*breathalyzer.