Feature 1It is easy to operate, and just blow into the instrumen and you can get the alcohol content in the body accurately. 2There is no contact with the instrument, so bacteria can be prevented from entering the oral cavity, which is clean and safe. 3This is a dvanced alcohol sensor, which has high sensitivity and fast response. If the value exceeds your preset value, it will issue a warning. 4The LCD screen functions well, so even in the night and under backlight situation, the product can bring you convenience. 5With compact design and portable size, it is easy to carry. And it can switch among the four units: mg/100, BAC , g/l , mg/L BrAC.Item Type: AlcoholTesterMaterial: Aluminium AlloyDetection Range: Approx. 0.00-0.20%BAC / 0.0-1.9g/lAccuracy: Approx. 0.05%bacWarm-up: 10sResponse: <5sPower Supply: USB ChargingBattery Capacity: 300mAh(Shipped with Battery) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x AlcoholTester1 x USB Cable1 x Lanyard1 x Bracket1 x Storage Bag1 x Manual