Features:Advanced flat surfaced alcohol sensorQuick responseSMD assembling， stable performanceDirect testing process LCD indicationDigital LCD display with blue backlightPortable and fashion designAudible warning beyond preset limitSensor fault self checkingBattery saved design，low voltage indicationDigital LCD displaySpecifications:Detection Range: 0.00 - 0.20BAC% ; 0.00 - 2.00 g/L; 0.00 - 2.00BAC¡ë ; 0.00 - 1.00 mg/L; 0.00 - 200 mg/100mLAlarming Threshold: 0.05% BAC; 0.50 g/L; 0.50¡ë BAC; 50 mg/100mLTest Accuracy: ¡À10% F.SWorking Voltage: DC 4.5V 3xAAA batteries(not included)Working Current: ¡Ü120mAEnvironmental temperature:-10¡æ to 50¡æRelative Humidity ¡Ü95%Display: 3 digits LCD display with blue backlightBattery Expectancy Time: ¡Ý2000 TimesSize:103 x 65 x 27mm(LxWxH)Weight: 76.5gPackage Content:1 x Alcohol Tester5 x Mouthpieces