Feature:1. Application: Advanced Semiconductor Oxide Alcohol Sensor is a simple method to analyze blood alcohol concentration anytime, anywhere.2. High Sensitivity: The digital alcohol breath analyzer is highly sensitive. Accuracy: 0.01% BAC（Alarm at 0.05% BAC） for your comfort.3. Screen: LCD Screen The portable digital alcohol tester's LCD screen gives you a clearer view and the digital alcohol automatically gives you an audible alert.4. Safe Use: Environment and healthy five nozzle multi user breath test design, ensuring health and safety use. Automatic shutdown, fast response and recovery.5. HIgh Accuracy: The alcohol drops automatically, the impurity is removed automatically, the detection is more accurate.How to Use:1. Take out the product and install the battery.Specification:Item Type: BreathalyzerMaterial: ABSSize: Approx. 10.8x5x3cm / 4.3x2.0x1.2in Battery: 2 x AAA Battery (Without)Sensor: High Sensitivity Semiconductor Alcohol SensorTest Range: 0.00-0.19%BAC(0.1-1.9g/L)Alcohol: -0.01~+0.02%BAC (Alarm point at 0.05%BAC)Preheating Time: 10 SecondsBlowing Time: Within 10 SecondsReaction Time: <5 SecondsAutomatic Shutdown: 10 Seconds After The Result Is DisplayedWorking Environment: 0°-45°Features:Digital alcohol breath analyzer with high sensitivity.Easy to carry, small size, key chain design.Automatic shutdown, quick response and recovery.The LCD screen gives you a clearer view and the digital automatically gives you an audible alarm.An easy way to test your blood alcohol level anytime, anywhere. Package List:1 xBreathalyzer 4 x Blowing Mouth 1 x Description