Stay safe on the road with the Professional Alcohol Tester with Blue Backlight LCD Screen. This portable breathalyzer features a high-precision semiconductor alcohol sensor, providing accurate results in just 5 seconds. Whether you're at a party or a social gathering, this breathalyzer will help you make responsible decisions.<br> <br>Using the breathalyzer is easy. Simply press the power button to start, wait for 15 seconds to warm up, then blow into the tester for 5-6 seconds. The result will be displayed on the blue backlight LCD screen within 3 seconds. The portable design allows you to carry it anywhere, and the included white cloth bag ensures its safety during transportation.<br> <br>With 15 mouthpieces included, you can share this breathalyzer with your friends and family for hygienic testing. It's a great tool to promote responsible drinking and ensure everyone's safety. The breathalyzer operates on 3 AAA batteries (not included), providing convenient battery operation.<br> <br>Stay responsible and make informed decisions with the Professional Alcohol Tester with Blue Backlight LCD Screen. Order yours today and drive with confidence.