Alcohol Tester, Accurate Alcohol Meter for Police, Professional Alcohol Tester with 12 Mouthpieces and LCD Screen

High-precision digital breath analyzer: This alcohol tester has a high-precision semiconductor alcohol sensor. It can quickly provide a result to assess whether you can drive or not. Test winner with 99.1%, range of 0.00% ~ 1.9% BAC / 0.0 ~ 1.9 g/l. Perfect for drivers.\nEasy to use: just insert 2 AAA batteries (batteries not included), turn on your alcohol tester. Wait 10 seconds to warm it up and then blow for 3-6 seconds. The result will then be displayed on the LCD screen. The results are displayed for 10 seconds and then automatically turn off.\nAutomatic alarm function: If the test result is above 0.05% BAC or 0.50 BAC or 0.25 mg/l or 50 mg/100 ml, the alcohol tester will give a continuous signal and remind drivers not to drive. (Wait 20 minutes after drinking to perform the test, the result will be more accurate)\nLightweight and portable: the alcohol tester can be carried anytime and anywhere in your pocket or wallet. It is very suitable for weddings, parties, celebrations and other social events to help you assess whether it is appropriate to drive.