Advanced sensor technology delivers accurate results in seconds with a fast, reliable check. High accuracy and stable readings are supported by independent air holes and an LCD backlight display, which help isolate ambient air and gases and maintain reading accuracy. Portability you can rely on: fits into a purse or pocket, lightweight and compact, making it easy to carry while preserving professional accuracy. Simple to operate: turn on by pressing the button for 1 second, then a 10-second warm-up occurs. After 3-5 seconds of insufflation into the inhaler, the measurement is ready and easy to use. Use scenarios: - Before driving after a social event to verify you are within safe limits. - Before travel or long trips to confirm suitability for on-road use. - At venues or workplaces where quick, discrete breath checks are useful for staff or attendees.