Feature:1. C LANGUAGE ALGORITHM: Alcohol tester can measure overnight wine, using the third generation ASIC chip, +AI intelligent sensor, intelligent, durable, more accurate, the accuracy rate is 50% higher than the previous generation2. LCD HD DIGITAL DISPLAY SCREEN: Alcohol detector is clear, the drinking state will be lit with three corresponding hole bright colors(green light is not exceeded, yellow flashing light is drunk driving, red flashing light is drunken driving)3. UPGRADED DFFA DUAL FILTERING ALGORITHM: The alcohol tester is based on a high accuracy chip, a smart sensor that filter out other impurities, leaving only alcohol for a more accurate test4. QUICK CHECK: The alcohol detector support blowing without contact measurement, which is more hygienic, avoid blowpipe dirty growth, and make the measurement healthier5. VOICE ANNOUNCEMENTS: Digital alcohol tester is simple and clear, update the voice to announce test results and tell you if you're drunk, fast and convenientSpecification:Item Type: Alcohol TesterMaterial: Aluminum alloy, ABSBattery Type: Rechargeable lithium batteryBattery Capacity: 200mAhDetection Method: Semiconductor gas sensorBreath Alcohol Concentration Measurement Range: 0-200mg/100mLBreath Time: 10 SecondsMeasurement Object: Breath alcohol concentrationOperating Temperature Range: -5 to 45Storage Temperature Range: -20 to 50.Package List:1 x Alcohol Tester1 x USB Cable1 x User Manual