Features:Smart MCU controlAdvanced flat surfaced alcohol sensorQuick response and resumeSMD assembling， stable performanceDirect testing process LCD indication， BAC 0.000%， 0.00 %0， mg/lOne key operatingDigital LCD display with light blue backupPortable and fashion designAudio warning beyond pre-set limitSensor Fault Self checkingBattery saved design， low voltage indicationDimension: 112*61*29mmPackage: Gift box. Technical Data:Sensor type: Flat surfaced alcohol sensorWorking Voltage: DC4.5V3× AAABatteriesWorking Current: ≤ 120mAWorking Environment: Temperature: -10 oC to 50 oCRelative Humidity ≤ 95% No DewsDetection Range: 0.001.00mg/L0.0000.199%BAC; 0.001.90g/L; 0.001.99BACAlarming Level: 0.25mg/L (0.05%BAC， 0.50g/L; 0.50BAC)Accuracy: ± 10% F. SResponse Time: 5sResume Time: 20sDisplay: 3 digits LCD display with light blue backlightBattery expectancy time: 200Times Package Include:1 x Alcohol tester with 5 mouthpieces1 x Anti-Dust pouch1 x User manual(Russian and English)