Model Number:22761Origin:Mainland China Certification:CE Precaution: Whenafter drinking, it is recommended to last after 20 minutes, it isbecause 20 minutes is approximately for alcohol to be absorbed intoblood from the digestive organs, and residual alcohol remaining in themouth takes this long to dissipate. For accurate result, do not repeat next testing within 3 minutes after last time. Do not smoke and eat for 20 minutes prior testing. Do not use chemicals to clean the tester directly. Do not blowing liquid into the breath pipe. Do not use any excitant substances near the tester, such as paint, insecticides, alcohol. Do not place the tester in the closed environment with contaminated air. Modifying or tampering with the unit's internal components may cause a malfunction. Theunit is designed to be used as an aid to promote reasonable driving. Itshould not be used in anticipation of the use or operation of vehicles,machinery, or equipment. The unit makes no references whatsoever toblood alc0hol content or other such measures of intoxication promulgatedby government, medical or other agencies or bodies. Notes: Regardlessof whether the product is used, manufacturers and vendors will not bearany responsibility for the violations. For example: drunk driving andhigh-altitude operations. Eachperson reacts differently to alcohol, so the test results are forreference only, which cannot serve as the criteria in determining theoutcome. Specifications: Quick response and resume Digital LCD display with Red backlight 360 degree rotating mouthpiece Three kinds of unit conversion(BAC 0.000%,0.00 %0,mg/l) Use 2*AAA alkaline batteries(Not included) Package Included: 1 x Digital Breath Alcohol Tester (include 4 mouthpieces) 1 x User Manual NOTES: 1. Due to different display and lighting effects, the actual color of the item may be slightly different from the color shown on the picture. 2. Due to manual measurement, please allow a little measurement deviation. 3. If you have any problem with the product received or your package is missing, please contact us in time, we will reply within 24 hours. Do dropshipping ? Yes,we do.If you have any question please contact us. Production Material Safety? All products are 100% brand new, workable and checked carefully before sending out. When is the parcel sent? We will send out order within 5 workdays. The delivery time will vary according to different countries and will be affected by weather, public holidays and so on. If order doesn't received in declare time, please contact us. How about refund? Full refund if the item does not match the description or defective. If there are any other problems , Click on Help