Features:*High Quality Material: This product is made of high-quality material, which is wear-resistant and durable, not easy to break and can be used for a long time.*Easy to use: the alcohols tester is powered by 2 AAA batteries (not included), with digital display, easy to use.*Versatile: The alcohols tester is equipped with a high-precision alcohols sensor and can be widely used to test friends at bar and family member at house parties.*Portable: lightweight and compact, it can easily fit in your purse or pocket.*Wide Application: Suitable for weddings, parties, banquets or other social events, ensuring your safety while driving under influence.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurementDescription:Material: ABSSize: 118*73*28mmPower supply: 2*AAA batteries (not included)Test range: 0.00-0.19%BAC (0.0-1.9g/l)Accuracy: -0.01~+0.02%BAC (at 0.05%BAC alarm point)Warm-up time: 10 secondsBlowing time: within 10 secondsReaction-time: