Rapid and reliable detection: this breathalyzer uses a semiconductor sensor to detect your BAC quickly and accurately. It helps you avoid driving under the influence and lets you check your driving readiness. Clear and fast results: no more guessing. It offers fast detection across a test range of 0.00% to 0.19% BAC. Results are clearly shown on a backlit LCD screen with a quick audible signal. Easy and clean testing: warm up for 10 seconds with a power button. You do not need to touch the device while blowing for 3–5 seconds. Results appear on the screen, providing an efficient and simple way to test your BAC. Accurate and portable: reliable results in seconds with a single button press. Batterypowered and compact enough to fit in your pocket, so you can take it anywhere you need it. (2 batteries required, not included) Practical use scenarios: Before driving home after a social event to decide whether it is safe to drive or if you should arrange an alternative. At parties or gatherings to check impairment levels before operating a vehicle or other equipment. For individuals or fleet operators who need to monitor BAC to ensure safe, responsible decisions.