Accurate Breath Alcohol Tester Keychain Breathalyzer Flashlight 100% NEW . Breath Alcohol Tester with Flashlight Portable and convenient to carry on a key chains Easy to use and quick response and resume Sensor: advanced semiconductor oxide alcohol sensor The Alcohol Tester use two AAA alkaline batteries (not included) Breath Alcohol Tester test accuracy :0.01percent BAC(0.05MG/L BRAC) Range:0.00percent -0.1percent ABC (0.00-0.50MG/L BRAC) Operating time: warm up: 15-30s, response: less than 5s Dimension: 70x40x15mm Weight: 26g. :::::INSTRUCTIONS:::::: User MUST hold down the main button throughout the entire test. First, all three bulbs light up. Then as you keep pressing the device for about 15 seconds (do not let go of button), you will see the green light alone. As you continue to hold it down, with just the green button lit, the user should then breathe into the device for another 10 seconds. If the user is sober, it will remain green, if the user is intoxicated it will also light up yellow or red. Aссurаtе Brеath Alсoh0l Testеr Kеychain BreаthαlУzer Flαshl¡ght