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.