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. 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. 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. Stay