The NAM-19S is a life-saving, technologically advanced alcohol testing device certified as evidence-grade thanks to its specially developed, next-generation electrochemical sensor, which delivers exceptionally high accuracy and sensitivity. The NAM-19S is reliably used in all settings where road safety, life safety, property safety, and workplace safety are essential, such as roadside checkpoints, law enforcement checks, workplaces, and transportation. Unlike the NAM-19, this device lacks an alphanumeric keypad for data entry. Manufactured using specially developed, next-generation electrochemical sensor technology, the NAM-19S is an evidence-grade breathalyzer that delivers accurate, reliable results and meets international standards. The NAM-19S features multiple measurement modes (automatic/active, manual, passive, and no-measure mode), allowing for testing in any environment. In addition to automatic measurements, the NAM-19S can perform manual measurements in cases of insufficient breathing and can also conduct environmental measurements using passive measurement mode. Individuals who wish to opt out of measurement using the opt-out mode can register. Its quick operation via a three-button shortcut, compact size, color transreflective TFT display ensuring suitability for use in sunlight, country-specific language selection, user-guided menu structure, and warning and error messages make it completely user-friendly.