Efficient and reliable performance Obtain accurate alcohol measurement results in about 20 seconds with this Alcohol Breath Tester. For increased precision, it is recommended to repeat the test 23 times due to the sensitive sensor and fast testing capabilities. Safety and accuracy Wide test range from 0.0 to 1.9 g/L provides precise results. For accuracy, rinse your mouth and wait 20 minutes after drinking before testing. Durable and longlasting Built with dependable materials. The sturdy ABS construction is designed to last and maintain reliable performance. Outdoor portable design Compact and easy to carry, making it convenient for outdoor use and simple storage. Use scenarios safety before driving: check your BAC after social activities to determine if it is safe to operate a vehicle. Outdoor activities and travel: carry in a bag or backpack for quick, onthego breath tests during hikes, camping trips, or long trips. Workplace or event safety checks: use to perform quick safety checks before operating machines or participating in activities that require sober performance.