Alcohol tester, high-precision breath alcohol measuring device with digital color LCD screen, professional alcohol tester with 10 mouthpieces (black)

Easy to use: Insert two AA batteries, turn on the breathalyzer, wait 15 seconds for it to warm up, and then blow steadily for 3 to 5 seconds. The result will be displayed on the LCD screen within 5 seconds. High accuracy: This breathalyzer uses a high-precision semiconductor alcohol sensor to monitor your blood alcohol content. Note: For more accurate test results, please refrain from drinking alcohol for 20 minutes before use. Fast response and accurate results: This professional breathalyzer displays your blood alcohol content on the screen to one decimal place. The breathalyzer uses semiconductor sensors for accurate and fast blood alcohol measurement, ensuring safe alcohol consumption at home or at parties. Audible warning and color indicators: If the test result is below 0.08% BAC, the green LED will light up and 3 short beeps will sound. If the blood alcohol content is above 0.08%, the red LED will light up and three long beeps will sound. Measuring range: The blood alcohol measurement range is between 0.00 and 0.20%. The test result reaches the maximum value (0.20%) and does not increase further. Even with increased alcohol consumption, the test result remains at 0.20%.