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

Easy to use: Prepare two AA batteries in advance, turn on the breathalyzer's power button, wait 15 seconds for it to warm up, then blow evenly 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 level. Note: For more accurate test results, please refrain from drinking alcohol for 20 minutes before using the breathalyzer.

Fast response and accurate results: This professional breathalyzer displays your blood alcohol level to one decimal place on the screen.

The breathalyzer uses semiconductor sensors to accurately and quickly measure blood alcohol levels, ensuring safe alcohol consumption at home or at parties. Audible warning and color indicators: When the test result is below 0.08% BAC, the green LED illuminates and there are 3 short beeps; when the test result is above 0.08% BAC, the red LED illuminates and three long beeps sound. Measurement range: The blood alcohol measurement range is 0.00 to 0.20% BAC. The test result will reach the maximum value (0.20%) and will not increase. Even if the amount of alcohol consumed increases, the test result will still indicate 0.20% BAC.