Fangrui Product Details A Breathalyzer Or Breathalyzer (a Portmanteau Of Breath And Analyzer/analyzer) Is A Device For Estimating Blood Alcohol Content (bac) From A Breath Sample. It Uses Advanced Semiconductor Alcohol Sensing Technology To Quickly Take A Breath Sample And Provide A Blood Alcohol Content (bac) Estimate. The Lcd Graphic Display Will Indicate How Inebriated You Are, Whether It Be Dangerous (over 0. Bac), Unsafe (approx. 0. Bac), Or Safe (under 0. Bac). Displays Caution When Result Is Within 0. - 0., Displays Danger When Result Equals To Or Higher Than 0.. Features: Brand New Digital Display Breath Alcohol Tester Digital Alcohol Tester With An Audible Alert Color: Black Material: Abs Range: 0.00-0. Bac 0.0-1.9g/l Quick Response And Resume Auto Power Off Backlight: Red Led Accuracy: 0. Bac 0.1g/l Warm Up Time: Less Than 10 Sec Response Time: Less Than 5 Sec Test Range: 0.00-0. Bac 0.0-1.9g/l Working Environment Temperature: 10-40 Celsius Working Environment Humidity: - Package C