SincereetaliFeatures: High Accuracy and Sensitivity This breathalyzer is used to measure the alcohol concentration in the human body. With a sensitive semiconductor sensor, this portable breathalyzer can quickly give a result to judge whether you can drive or not. High-precision test results, detection range: 0.00-0.19% BAC / 0.00-0.95 mg / L. Energy saving: The alcohol tester is powered by universal AAA batteries. It will go into standby mode 10 seconds after testing. Easy to use: The personal breathalyzer is extremely easy to use. The backlight display is clear when using the alcohol tester at night. There are extra mouthpieces used for testing, clean and convenient. This breathalyzer is lightweight, portable, easy to carry and transport. Specifications: Color: Black Material: ABS Accuracy: -0.01~+0.02% BAC Blowing Time: Within 10 seconds Size: 11*3*7cm/4.33*1.18*2.75in Weight: 80g/2.82 Package List: 1 * Alcohol Tester 5 * Mouthpiece 1 * Instruction 1 * testeur d'alcool Embouchure 5 * 1 * instruction