Feature:1. High-definition display, precision numerical LED large screen display, Simple reading with Three-color indicator, and clear at a glance.2. Precision algorithm for removing impurities and retaining alcohol. Alcohol quality automatically removes flowing impurities, only for more accurate detection.3. USB power supply, built-in high-capacity lithium battery, it can be used about 300 times with one charge.4. No mouthpiece contact is required. Safer and more hygienicAvoid blowpipe-style bacteria breeding without contact, and the measurement is healthier.5. Equipped with smart chip, highly sensitive sensor, more accurate measurement. It is recommended to start the test 20 minutes after drinking which is more accurate.Specification:Features:High-definition display, precision numerical LED large screen display, Simple reading with Three-color indicator, and clear at a glance.Precision algorithm for removing impurities and retaining alcohol. Alcohol quality automatically removes flowing impurities, only for more accurate detection.USB power supply, built-in high-capacity lithium battery, it can be used about 300 times with one charge.No mouthpiece contact is required. Safer and more hygienicAvoid blowpipe-style bacteria breeding without contact, and the measurement is healthier.Equipped with smart chip, highly sensitive sensor, more accurate measurement. It is recommended to start the test 20 minutes after drinking which is more accurate.Specifications:Model: AM01Color: BlackSensor type: semiconductor sensorDisplay: LCD liquid crystal display (black and white)Shell material: ABS plasticTest range: 0.00-0.19%BAC (0-1.9g/l)Unit of measurement: mg/l (BrAC) mg/ml (BAC)Measurement mode: quick investigation, automatic detectionMeasuring time: 20 secondsPower supply: Built-in rechargeable polymer lithium batteryUse battery: 3.7V 200MAH can test 300 times continuouslyPower adapter requirements: DC5V 1AWorking temperature: 0-45Warm-up time: 10 secondsBlowing time: within 10 seconds, the requirement is greater than 4 secondsResponse time: less than 5 secondsWorking current: 250MA (max)Standby current: less than 20UAProduct Size: 8.2*2.4cm / 3.2*0.9inProduct Weight: 20g / 0.7ozPackage Size: 10*8.8*2.2cm / 3.9*3.5*0.9inPackage Weight: 46g / 1.6ozPackage List:1 * Alcohol Tester1 * USB Cable1 * User ManualPackage List:1 * Alcohol Tester1 * USB Cable1 * User Manual