Description In our daily, we will inevitably drink some alcohols. For example, at some family gatherings or holiday dinners, moderate drinking is a way of celebrating, but excessive drinking can be harmful. If you are looking for an alcohols tester, come and try this product. Features: Large LCD Display: Using a large-screen digital display, the test results can be clearly displayed on the screen for your convenience. Portable Size: This alcohols detector is compact and portable, you can easily store it in your home or car for use anytime. Wide Applications: This alcohols detector can be widely used for your family gatherings, holiday dinners or home daily use. Easy to Use: The operation is simple and convenient. Firstly, you can press the power button and wait for the preheating for 10 seconds. After the preheating, blow air to the correct place for 5-8 seconds. Then check the test results according to the light color. Tri-color Display Prompt : The green color means the alcohols concentration is 0mg-20mg, the yellowcolor means the alcohols concentration is lower 20-80mg and the red color means the alcohols concentration is higher or equal to 80mg. Sound Warning: When the detection data exceeds the securitys ranges, it will have sounds to alarm you. Specifications: Material: ABS Response time: 5S Preheating time: 10S Battery: 1 * lithium battery, 200mAh (included) Working temperature ranges: -5~45 Storage temperature ranges: -20~50 Testing ranges: 0.000~0.199%BAC Blowing continuity test: 5S(flow: 10L/min) Recharging way: Direct current 5V 1A, Type-C Package size: 113 * 44 * 26.5mm / 4.4 * 1.7 * 1.0in Package weight: 130g / 4.6ounce Packing list: 1 * Alcohols Tester 1 * User Manual 1 * USB Cable