This alcohol tester is designed for accurately measuring the body alcohol content. It is easy to use, it measures the alcohol content just by blowing to the instrument. Compact design and portable size, convenient to carry.Features:Useful breathalyzer to accurately the body alcohol content just by blowing to the instrument, don't need to contact.C-programme operation, can test the alcohol at the previous night.Upgraded Type-C lithium battery, It can be continue used for 3 mouth by charging once.Advanced flat-surfaced alcohol sensor with high sensitivity and quick response.It can give a warning when alcohol content is over.Large LCD screen with backlight, convenient for night use.Compact design and portable size, convenient to carry.Easy to read the result with drunkenness alarm light. Drunkness turns red, alcohol turns yellow and the light turns green without alcohol.Specifications:Color: BlackMaterial: ABSPower Supply: Lithium BatteryMAX. Voltage: 0.15WWorking Voltage: 3V/0.5AWorking Current: 150MABlowing Time: 10sResponding Time: 5sMeasuring Range: 0.000-0.99%mg/LAccuracy: ±0.01mg/LPackage Size: 10 * 8.8 * 2.2cmPackage Weight: 50gPackage List:1 * Alcohol Tester1 * User Manual