Key features

• •[Sensitivity & LCD Display] With the sound alarm function, when the alcohol content is exceeded, the buzzer will automatically alarm. Automatically alarm, monitoring your alcohol level at all times.With the LCD display, breathalyzer is easier to read even in less than optimal light conditions and offer professional precision for safe driving.
• •[Automatic Alarm Function] The "Caution" symbol is displayed if the alcohol concentration is between 0.02% BAC(or 0.2g/l) and 0.05% BAC(or 0.5g/l). The "Danger" symbol is displayed with beep audible alert if the alcohol concentration is greater than or equal to 0.05% BAC(or 0.5g/l).
• •[Portable & Convenient] The portable breathalyzer alcohol tester comes with 12 individual mouthpieces. The mouthpieces can be cleaned and reused. The compact design is suitable for carrying in wallets, pockets, or cars, providing you and your family with professional accuracy for safe driving.
• •[Easy to Use] Just keep pressing the power button for 3 seconds to start the breath alcohol tester. Wait for 10 seconds for preheating and then keep blowing for 3-5 seconds to get the result. The result will be displayed on the LCD screen for 15 seconds. Then the blood alcohol level tester will automatically power off. Powered by 2 AAA batteries (not included).
• •[Important Reminder] Before conducting a breathalyzer test, Wait 20 min after drinking for accurate testing.Testing immediately after drinking will only show the current level of alcohol in your mouth. Please wait at least 3 minutes before the next exam.