Our professional - grade breathalyzer is equipped with top-notch sensor technology and has undergone thousands of tests to provide accurate results. This advanced system can detect the slightest traces of alcohol in your breath, ensuring you receive a detailed and reliable assessment of your alcohol level. Bid farewell to the headaches of complex charging setups. Our alcohol tester runs smoothly on just two AAA batteries, which are readily available at any convenience store. You can quickly swap out old batteries for new ones in seconds. It's the perfect blend of simplicity and functionality for those always on the move. We've designed this alcohol tester with simplicity at its core. The intuitive interface features large, easy - to - read displays and straightforward controls. Even if you're not tech - savvy, you'll be able to operate the device with ease. In just a few simple steps, you can initiate a test and receive clear, understandable results. Your health and comfort are our top priorities. That's why we've included eight high - quality, replaceable mouthpieces with each tester. These mouthpieces are ergonomically designed for a comfortable fit, ensuring a seamless testing experience. Whether you're using it personally or sharing it among colleagues or family, the hygienic design ensures everyone's safety and satisfaction. Avoid consuming any food, drinks (especially alcohol - containing ones), or smoking for at least 20 minutes prior to testing. These activities can interfere with the sensor and lead to inaccurate results.