Real-time, easy-to-read results The alcoholzer features a clear backlit LCD screen with an extended data display, delivering accurate alcohol concentration readings in real time. USB rechargeable power Built-in rechargeable battery with a USB interface enables reliable charging from bench USB outlets, a computer USB port, or a car charger. Long-lasting power supports repeated testing with consistent results. Real-time warnings Shows precise alcohol concentration values and emits a light audible alert when results exceed a preset limit, helping you stay within safe or required levels. Portable and discreet Compact, pocket-size design with a protective pouch for easy transport. Carry or wear discreetly and obtain exact readings whenever you need them. Performance and compatibility Designed for quick, dependable measurements with a user-friendly interface and versatile charging options compatible with common USB power sources. Use scenarios - After a social event, quickly check your alcohol level before driving to determine if you should wait or arrange alternative transportation. - At a workplace or safety-sensitive environment, monitor your readings to ensure you remain within permitted limits before operating equipment. - While traveling or at a home gathering, keep the device handy to verify your level in real time and prevent overconsumption.