Breathalyzer, Portable Keychain Breath Alcohol Tester for Driver

¡¼SIMPLE, ONE-BUTTON OPERATION¡½--- Just press the power button for 2 seconds to start the professional breathalyzer alcohol tester, waiting for 20 seconds for warming-up

¡¾EASY TO READ¡¿ With blue LED display, it will be much easier for night viewing. It will be auto shut off to save power after you finished the test for 20 seconds. LCD screen flicker shows that it is in low battery.

¡¾ONE TOUCH OPERATION ¡¿The breathalyzers are extremely easy to use. Simply insert the three included LR03 AAA batteries, power on your breathalyzer and begin testing. You are able to easily change units of measurements and set user-defined BAC thresholds for testing.