AlcoMate Pro certification from the Food & Drug Administration for medical and personal healthcare use. DOT / NTHSA: Approved by the Department of Transportation and the National Traffic & Highway Safety Administration. Law Enforcement grade Accuracy: +/- 0.01% at 0.10% BAC Breath sampling time: About 5 sec 1year warranty Includes: Car Adapter, Hard Case, Carrying Bag, 9V Battery, 2 Mouth Pieces, Hand Strap, & Breathalyzer.