CIFFRA Breathalyzer & Alcohol Tester, LCD Display Digital Fast, High Accuracy Detector (20 Mouthpieces)

PRO-Grade Accuracy: Test Range 0.00-0.20BAC% (0.00-2.00g/L). When your test result is equal to or greater than 0.05BAC%(0.5g/L), the "Danger" symbol will be displayed in the LCD display with beep audible alert. Easy to Use: The breathalyzer is extremely convenient and easy to use. Just insert 3 AAA batteries (not included), turn on the breathalyzer, wait 10 seconds for it to warm up, and then blow the exact results on the screen for 5 seconds into the tester. Portable Breathalyzer : The alcohol analyser With mini size, it's small and easily fits in a purse or pocket, hung on a keychain, or placed in a car. 20pcs mouthpieces, perfect for you and your family to make an alcohol testing.