• EASY TO USE: Just press the power button for 2 seconds to start the professional breathalyzer alcohol tester, wait for 20 seconds for warming-up, then blow with the tester for 5-6 seconds, the result will be ready after 3 seconds, and it will be displayed on the LCD screen for 15 seconds
• NOTE: In order to make the test results accurately, please test with the alcohol breathalyzer 20 minutes later after drinking; please wait for another 3 minutes before starting the next test to get the precise testing result
Please feel free to contact me via email: sales05(at)szeek.net.