LCD Digital Alcohol Tester Breathalyzer With 5pcs MouthpiecesSpecification:Material: PlasticColour: BlackDisplay: 3 digits LCD displayPocket Size: 1036527mm (LWH)Sensor Type: NM Hot-wire alcohol sensorBattery Expectancy Time: 200TimesDetection Range: 0.00 1.00mg\/L (0.00 0.20%BAC; 0.00 2.00g\/L; 0.00 2.00BAC)Working Voltage: DC4.5VFeature:Advanced NM Hot-wire alcohol sensorQuick responseSMD assembling, stable performanceSmart MCU controlDirect testing process LCD indicationDigital LCD display with light blue backupPortable and fashion designAudio warning beyond pre-set limitSensor fault self-checkinBattery saved design, low voltage indicationHow to Use:To ensure the accuracy of the test result, before testing, please wait for at least 15 to 20 minutes after drinking. If you instantly use after drinking, the result will be falseTo ensure the accuracy of the test result, please wait at least 3 minutes to begin the next test after the last testTo prevent other liquids flow into the air-blowing tube, please do not use chemical or corrosive solution\/liquid to clean this productThis product cannot be used normally in the environment with high concentration gasDo not use in the enclosed space with paints, pesticides, alcohol and other corrosive gas or dirty airPlease do not try to open or repair this product your ownAfter a long time, use please use a clean cloth to clean the testerNote: If a tester is not used for a few days then the buyer will need to press the reset button, as the sensor requires some time to heat and resetPackage Contains:1 x AT6000 Alcohol Tester5pcs x Mouthpieces