Alcohol Checker Alcohol Detector Alcohol Tester Alcohol Checker Breathalyzer Alcohol Detector LCD Digital Display Quick and Accurate - This self-alcohol checker can quickly and accurately measure the alcohol concentration in your body. When the detection result exceeds 0.250 mg/L, the system will emit a beeping alarm, and when the detection result reaches 0.380 mg/L, the system will emit a faster beeping alarm, helping you make the right decision when drinking. Portable: This alcohol detector is small in volume, light in weight, and easy to carry. Alcohol checker measurement range 0.000-0.190% BAC / 0.000-0.950 mg / L, digital display, green LCD Easy to Use: The alcohol checker is very easy to use. Simply insert two AA alkaline batteries (not included) to start the alcohol tester. It automatically turns off 5 seconds after the measurement is complete, saving energy. Note: (Bag not included) To obtain correct measurement results, use the alcohol tester 20 minutes after drinking. To obtain accurate measurement results, wait 3 minutes before starting the next measurement. ◎ Green