A professional breathalyzer that is considered one of the best on the market. This highly accurate device has received numerous awards and endorsements from reputable organizations for its reliability and ease of use. The device uses the same advanced platinum sensor fuel cell measurement technology that is used in hospitals, clinics, and even police breathalyzers. Meanwhile, operating the S80 is elementary - just insert two AA batteries and press one button. The display will show the measured breath alcohol concentration. You can also set the desired threshold values and switch units of measurement.