ITEM NAME:Breathalyzer,Portable Alcohol Breath Tester with LCD Display Digital Fast,H P5J1 Breathalyzer,Portable Alcohol Breath Tester with LCD Display Digital Fast,H P5J1 Automatic alarm alcohol breathalyzer:Test Range:0.00-0.19% BAC(or 0.0-1.9g/l).When your test result is equal to or greater than 0.05% BAC(or 0.5g/l),the"Danger"symbol will be displayed in the LCD display with beep audible alert.When your test result between 0.02% BAC(or 0.2g/l)and 0.05% BAC(or 0.5g/l),It only displays the"Caution"symbol without beep alarm alert. Simple operation&fast:You just have to press the power button for 1 second to turn on the alcohol tester,then take 10 seconds to warm it up,after blow into the breath inhaler for 3-5 seconds,the test result is displayed on the LCD screen of the alcohol tester designed with blue backlight,easy to read.Fast answer and accurate result. Energy saving&Durable:Using 2 x"AAA"alkaline batteries(not included),after the result being displayed for about 10 seconds,the"OFF"symbol will appear for 2-3 seconds and the alcohol tester be turned off. Portable:The alcohol analyser With mini size,it's small and easily fits in a purse or pocket,hung on a keychain,or placed in a car.5pcs mouthpieces,perfect for you and your family to make an alcohol testing,give you and your family professional accuracy for safe driving. Warm reminder:When after drinking,it is recommended to wait 20 minutes before making a testing,it is because 20 minutes is approximately for alcohol into blood from the digestive organs.To get a more accurate result,please wait three minutes between each test . Sensor:advanced semiconductor oxide alcohol sensor Range:0.00%-0.19% BAC(0.0-1.9g/l) Accuracy:-0.01%-+0.02% at 0.05% BAC Power input:2 x1.5V"AAA"alkaline battery Operating time:warm up:10s,response:Less than 5s Auto power off:1 minute approx Dimension:113*52*25mm Environmental temperature:5℃-40℃ Using instructions 1.Insert 2 AAA batteries and a mouthpiece into the alcohol tester 2.Press .Automatic alarm alcohol breathalyzer:Test Range:0.00-0.19% BAC(or 0.0-1.9g/l). Simple operation&fast:You just have to press the power button for 1 second to turn on the alcohol tester,then take 10 seconds to warm it up,after blow into the breath inhaler for 3-5 seconds,the test result is displayed on the LCD screen of the alcohol tester designed with blue backlight,easy to read.Fast answer and accurate result.